PrimeGrid
Please visit donation page to help the project cover running costs for this month

Toggle Menu

Join PrimeGrid

Returning Participants

Community

Leader Boards

Results

Other

drummers-lowrise

Advanced search

Message boards : Sophie Germain Prime Search : First Prime!

Author Message
Profile bglasgow
Avatar
Send message
Joined: 21 Aug 12
Posts: 3
ID: 164968
Credit: 57,414,719
RAC: 0
321 LLR Silver: Earned 100,000 credits (225,317)Cullen LLR Silver: Earned 100,000 credits (203,424)ESP LLR Bronze: Earned 10,000 credits (82,231)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (49,413)PPS LLR Jade: Earned 10,000,000 credits (12,042,762)PSP LLR Silver: Earned 100,000 credits (157,886)SoB LLR Silver: Earned 100,000 credits (140,645)SR5 LLR Silver: Earned 100,000 credits (465,511)SGS LLR Ruby: Earned 2,000,000 credits (2,830,582)TRP LLR Bronze: Earned 10,000 credits (96,215)Woodall LLR Silver: Earned 100,000 credits (257,503)321 Sieve (suspended) Gold: Earned 500,000 credits (506,814)PPS Sieve Turquoise: Earned 5,000,000 credits (5,501,472)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (20,947)TRP Sieve (suspended) Gold: Earned 500,000 credits (857,449)AP 26/27 Ruby: Earned 2,000,000 credits (3,202,056)GFN Sapphire: Earned 20,000,000 credits (30,772,304)
Message 62102 - Posted: 30 Jan 2013 | 13:53:06 UTC

After about 3,000 work units I finally found one. From what I've read in other threads I feel pretty lucky. It still hasn't shown up on my primes pages, just the 'Your account' page, but I'm really excited to see it's decimal length once it's confirmed.

Profile Rick Reynolds
Avatar
Send message
Joined: 13 Aug 10
Posts: 8033
ID: 65483
Credit: 5,740,673,071
RAC: 4,839,077
Discovered 3 mega primesFound 2 primes in the 2018 Tour de PrimesFound 2 primes in the 2019 Tour de PrimesFound 12 primes in the 2020 Tour de PrimesFound 2 primes in the 2021 Tour de PrimesFound 1 mega prime in the 2021 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,244,909)Cullen LLR Jade: Earned 10,000,000 credits (10,194,451)ESP LLR Turquoise: Earned 5,000,000 credits (5,174,327)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,028,260)PPS LLR Emerald: Earned 50,000,000 credits (71,665,432)PSP LLR Turquoise: Earned 5,000,000 credits (5,151,448)SoB LLR Turquoise: Earned 5,000,000 credits (5,014,268)SR5 LLR Jade: Earned 10,000,000 credits (14,871,275)SGS LLR Turquoise: Earned 5,000,000 credits (7,860,522)TRP LLR Jade: Earned 10,000,000 credits (11,130,742)Woodall LLR Turquoise: Earned 5,000,000 credits (5,419,909)321 Sieve (suspended) Double Bronze: Earned 100,000,000 credits (101,538,236)Cullen/Woodall Sieve (suspended) Double Bronze: Earned 100,000,000 credits (127,922,665)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (30,984,158)PPS Sieve Double Ruby: Earned 2,000,000,000 credits (2,840,173,136)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Turquoise: Earned 5,000,000 credits (8,134,964)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (7,013,696)AP 26/27 Double Silver: Earned 200,000,000 credits (276,723,135)WW Double Silver: Earned 200,000,000 credits (476,860,000)GFN Double Silver: Earned 200,000,000 credits (349,242,791)PSA Double Amethyst: Earned 1,000,000,000 credits (1,370,700,486)
Message 62103 - Posted: 30 Jan 2013 | 14:10:26 UTC - in response to Message 62102.

After about 3,000 work units I finally found one. From what I've read in other threads I feel pretty lucky. It still hasn't shown up on my primes pages, just the 'Your account' page, but I'm really excited to see it's decimal length once it's confirmed.


Congrats on the find.

Cheers - Rick
____________
@AggieThePew

Profile Crun-chiProject donor
Volunteer tester
Avatar
Send message
Joined: 25 Nov 09
Posts: 3048
ID: 50683
Credit: 63,361,547
RAC: 29,335
Eliminated 1 conjecture "k"Found 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Silver: Earned 100,000 credits (229,492)Cullen LLR Silver: Earned 100,000 credits (110,733)PPS LLR Jade: Earned 10,000,000 credits (11,335,374)PSP LLR Silver: Earned 100,000 credits (104,385)SoB LLR Silver: Earned 100,000 credits (106,117)SR5 LLR Silver: Earned 100,000 credits (139,802)SGS LLR Amethyst: Earned 1,000,000 credits (1,325,207)TRP LLR Gold: Earned 500,000 credits (626,755)Woodall LLR Silver: Earned 100,000 credits (122,944)321 Sieve (suspended) Silver: Earned 100,000 credits (104,900)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,000,599)Generalized Cullen/Woodall Sieve (suspended) Gold: Earned 500,000 credits (515,556)PPS Sieve Jade: Earned 10,000,000 credits (11,855,975)TRP Sieve (suspended) Silver: Earned 100,000 credits (255,612)AP 26/27 Ruby: Earned 2,000,000 credits (2,583,960)WW Amethyst: Earned 1,000,000 credits (1,088,000)GFN Sapphire: Earned 20,000,000 credits (23,334,026)PSA Turquoise: Earned 5,000,000 credits (7,522,050)
Message 62119 - Posted: 30 Jan 2013 | 22:18:03 UTC - in response to Message 62102.
Last modified: 30 Jan 2013 | 22:18:25 UTC

After about 3,000 work units I finally found one. From what I've read in other threads I feel pretty lucky. It still hasn't shown up on my primes pages, just the 'Your account' page, but I'm really excited to see it's decimal length once it's confirmed.


It will have ~ 388341 digits :)

Yes, you are pretty lucky, I search my SGS for more then 33.000 WU :)
And of course congratulations on your first prime!
____________
92*10^1439761-1 NEAR-REPDIGIT PRIME :) :) :)
314187728^131072+1 GENERALIZED FERMAT
31*332^367560+1 CRUS PRIME
Proud member of team Aggie The Pew. Go Aggie!

Profile bglasgow
Avatar
Send message
Joined: 21 Aug 12
Posts: 3
ID: 164968
Credit: 57,414,719
RAC: 0
321 LLR Silver: Earned 100,000 credits (225,317)Cullen LLR Silver: Earned 100,000 credits (203,424)ESP LLR Bronze: Earned 10,000 credits (82,231)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (49,413)PPS LLR Jade: Earned 10,000,000 credits (12,042,762)PSP LLR Silver: Earned 100,000 credits (157,886)SoB LLR Silver: Earned 100,000 credits (140,645)SR5 LLR Silver: Earned 100,000 credits (465,511)SGS LLR Ruby: Earned 2,000,000 credits (2,830,582)TRP LLR Bronze: Earned 10,000 credits (96,215)Woodall LLR Silver: Earned 100,000 credits (257,503)321 Sieve (suspended) Gold: Earned 500,000 credits (506,814)PPS Sieve Turquoise: Earned 5,000,000 credits (5,501,472)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (20,947)TRP Sieve (suspended) Gold: Earned 500,000 credits (857,449)AP 26/27 Ruby: Earned 2,000,000 credits (3,202,056)GFN Sapphire: Earned 20,000,000 credits (30,772,304)
Message 62146 - Posted: 31 Jan 2013 | 16:25:52 UTC - in response to Message 62119.

After about 3,000 work units I finally found one. From what I've read in other threads I feel pretty lucky. It still hasn't shown up on my primes pages, just the 'Your account' page, but I'm really excited to see it's decimal length once it's confirmed.


It will have ~ 388341 digits :)

Yes, you are pretty lucky, I search my SGS for more then 33.000 WU :)
And of course congratulations on your first prime!


Thanks for the info! But maybe I am misunderstanding the project goal, is this not a Sophie Germain? The digit count seems too high, doesn't it?
____________
317525245347*2^1290000-1

Profile Michael GoetzProject donor
Volunteer moderator
Project administrator
Avatar
Send message
Joined: 21 Jan 10
Posts: 13576
ID: 53948
Credit: 249,873,691
RAC: 127,503
The "Shut up already!" badge:  This loud mouth has mansplained on the forums over 10 thousand times!  Sheesh!!!Discovered the World's First GFN-19 prime!!!Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 2 primes in the 2021 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,822,730)Cullen LLR Ruby: Earned 2,000,000 credits (3,624,591)ESP LLR Turquoise: Earned 5,000,000 credits (5,021,269)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,145,754)PPS LLR Jade: Earned 10,000,000 credits (19,534,590)PSP LLR Turquoise: Earned 5,000,000 credits (5,197,957)SoB LLR Sapphire: Earned 20,000,000 credits (34,291,181)SR5 LLR Jade: Earned 10,000,000 credits (10,007,110)SGS LLR Ruby: Earned 2,000,000 credits (3,710,224)TRP LLR Turquoise: Earned 5,000,000 credits (5,084,329)Woodall LLR Ruby: Earned 2,000,000 credits (2,963,361)321 Sieve (suspended) Jade: Earned 10,000,000 credits (10,061,196)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,059,304)PPS Sieve Sapphire: Earned 20,000,000 credits (22,885,121)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,035,522)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,051,121)AP 26/27 Jade: Earned 10,000,000 credits (10,118,303)WW Turquoise: Earned 5,000,000 credits (9,764,000)GFN Emerald: Earned 50,000,000 credits (77,882,617)PSA Jade: Earned 10,000,000 credits (12,445,029)
Message 62148 - Posted: 31 Jan 2013 | 16:44:18 UTC - in response to Message 62146.

After about 3,000 work units I finally found one. From what I've read in other threads I feel pretty lucky. It still hasn't shown up on my primes pages, just the 'Your account' page, but I'm really excited to see it's decimal length once it's confirmed.


It will have ~ 388341 digits :)

Yes, you are pretty lucky, I search my SGS for more then 33.000 WU :)
And of course congratulations on your first prime!


Thanks for the info! But maybe I am misunderstanding the project goal, is this not a Sophie Germain? The digit count seems too high, doesn't it?


That's a very good question.

SGS searches for Sophie Germain pairs of prime numbers. The first step in finding a pair of primes is, as you might imagine, finding one prime. That's what you've found -- a Proth prime.

With SGS, once that prime is found, several other "adjacent" numbers are checked to see if they too are prime. If any of them are prime, then your prime and that prime together form a Sophie Germain pair (or a twin prime pair), and that's a pretty rare find.

For more details on exactly what constitutes a SG pair, please read the introductory post to this forum, located here.
____________
My lucky number is 75898524288+1

Profile bglasgow
Avatar
Send message
Joined: 21 Aug 12
Posts: 3
ID: 164968
Credit: 57,414,719
RAC: 0
321 LLR Silver: Earned 100,000 credits (225,317)Cullen LLR Silver: Earned 100,000 credits (203,424)ESP LLR Bronze: Earned 10,000 credits (82,231)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (49,413)PPS LLR Jade: Earned 10,000,000 credits (12,042,762)PSP LLR Silver: Earned 100,000 credits (157,886)SoB LLR Silver: Earned 100,000 credits (140,645)SR5 LLR Silver: Earned 100,000 credits (465,511)SGS LLR Ruby: Earned 2,000,000 credits (2,830,582)TRP LLR Bronze: Earned 10,000 credits (96,215)Woodall LLR Silver: Earned 100,000 credits (257,503)321 Sieve (suspended) Gold: Earned 500,000 credits (506,814)PPS Sieve Turquoise: Earned 5,000,000 credits (5,501,472)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (20,947)TRP Sieve (suspended) Gold: Earned 500,000 credits (857,449)AP 26/27 Ruby: Earned 2,000,000 credits (3,202,056)GFN Sapphire: Earned 20,000,000 credits (30,772,304)
Message 62150 - Posted: 31 Jan 2013 | 17:04:19 UTC - in response to Message 62148.

After about 3,000 work units I finally found one. From what I've read in other threads I feel pretty lucky. It still hasn't shown up on my primes pages, just the 'Your account' page, but I'm really excited to see it's decimal length once it's confirmed.


It will have ~ 388341 digits :)

Yes, you are pretty lucky, I search my SGS for more then 33.000 WU :)
And of course congratulations on your first prime!


Thanks for the info! But maybe I am misunderstanding the project goal, is this not a Sophie Germain? The digit count seems too high, doesn't it?


That's a very good question.

SGS searches for Sophie Germain pairs of prime numbers. The first step in finding a pair of primes is, as you might imagine, finding one prime. That's what you've found -- a Proth prime.

With SGS, once that prime is found, several other "adjacent" numbers are checked to see if they too are prime. If any of them are prime, then your prime and that prime together form a Sophie Germain pair (or a twin prime pair), and that's a pretty rare find.

For more details on exactly what constitutes a SG pair, please read the introductory post to this forum, located here.


Thanks for the explanation, that makes more sense. I come from a biology background, so my interest and knowledge of math is casual at best.

I had (incorrectly) assumed the SG search was searching the 2p + 1 form of previously discovered primes, and finding a prime in this project necessarily qualify it as Sophie Germain. Now that I think of it, those would be low-hanging fruits that would have already been tested.


____________
317525245347*2^1290000-1

Message boards : Sophie Germain Prime Search : First Prime!

[Return to PrimeGrid main page]
DNS Powered by DNSEXIT.COM
Copyright © 2005 - 2021 Rytis Slatkevičius (contact) and PrimeGrid community. Server load 4.13, 3.70, 3.83
Generated 1 Mar 2021 | 10:15:33 UTC