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After a few weeks of running this project exclusively, I DCed my first prime which was pretty exciting! It came after 22415 tasks.
Just curious, for those of you running this project, what percentage of tasks result in a prime for you? I DCed another shortly after, so it's about 0.006% right now for me.
Also, since these primes are out of the 5000 range, what is the main reason you all run the project?
Have a great one! :) |
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 Michael Goetz Volunteer moderator
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After a few weeks of running this project exclusively, I DCed my first prime which was pretty exciting! It came after 22415 tasks.
Just curious, for those of you running this project, what percentage of tasks result in a prime for you? I DCed another shortly after, so it's about 0.006% right now for me.
Also, since these primes are out of the 5000 range, what is the main reason you all run the project?
Have a great one! :)
Congratulations!
From the project's perspective, the purpose of running SGS is to find an SGS pair or a twin prime. Those are really rare, however. I imagine most people run SGS because it's easy to find a prime.
It's still fun to find a prime, even if it's not recorded at T5K. It's still recorded here. People also run GFN15, which won't be recorded at T5K.
And there's lots of projects outside of PrimeGrid that are too small for T5K.
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My lucky number is 75898524288+1 |
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MonkeydeeVolunteer tester
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I've done 50120 tasks and found 7 primes (6 primary and 1 DC). So that's 0.014%
I run this project because it's available to be run and there's a badge for it.
It's also a good project to switch to before starting a challenge because the units are short and you can keep crunching with minimal lost time at the start of a challenge. But PPSE can serve about the same purpose.
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My Primes
Badge Score: 4*2 + 6*2 + 7*4 + 8*8 + 11*3 + 12*1 = 157
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My first prime was a DC of a SGS number. Exciting! Then I jumped over to PPS-Mega and was a DC on my first Mega prime! Fun projects. |
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Michael GoetzVolunteer moderator
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I've done 50120 tasks and found 7 primes (6 primary and 1 DC). So that's 0.014
For me, it's 47777 tasks and 5 primes, including DC. That's 0.010% Note that I've been here long enough that a lot of those SGS tasks were on the previous range of SGS numbers, which were faster to test and more likely to yield a prime. So take all statistics with a large grain of salt.
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My lucky number is 75898524288+1 |
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Completed tasks 157556
Credit 4,627,762.53
Primes found 20
Percentage of tests resulting with a prime 0.0127
Again, mine include the previous range as well.
I run it because my first "love" in prime searching was the Twin Prime Search (where I was given partial credit for the largest twin when n was 195000), and SGS was pretty much the evolution of that search.
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That's awesome! Thanks for sharing - I'm learning more about these twin primes from a few of the replies. |
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Congratulations Andrew I'm at 31844 tasks 0 primes, 0 Double checks. percent prime is blank as it's 0.000% |
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HonzaVolunteer moderator
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Yes, used to be easier with smaller SGS (6-7 years ago).
1 056 342 tasks and 203 primes.
I should do a few more before SoB challenge.
The good think about SGS is that there are a lot more primes to find...
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Dave
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Posts: 3171
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Credit: 2,234,089,516
RAC: 522,613
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Personally 64023 tasks 5 primes 0.0078%.
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Congratulations Andrew I'm at 31844 tasks 0 primes, 0 Double checks. percent prime is blank as it's 0.000% Ahh, you've gotta be close to getting one!
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Completed tasks 25518
Credit 1,018,673.13
Primes found 4 (3 primary, 1 DC)
Percentage of tests resulting with a prime 0.0157 |
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Crun-chiVolunteer tester
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Sophie Germain Prime Search tasks
Completed tasks 36722
Credit 1,073,791.88
Primes found 3
Percentage of tests resulting with a prime 0.0082
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92*10^1439761-1 NEAR-REPDIGIT PRIME :) :) :)
4 * 650^498101-1 CRUS PRIME
2022202116^131072+1 GENERALIZED FERMAT
Proud member of team Aggie The Pew. Go Aggie! |
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Congratulations Andrew I'm at 31844 tasks 0 primes, 0 Double checks. percent prime is blank as it's 0.000%
Ahh, you've gotta be close to getting one!
I tried hard when it was getting edged off the t5k list, now it's on the back burner, I'll try again after I hit all gold badges. |
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Completed tasks: 153,899
Credit: 5,867,377
Primes found: 21 (7 primary - all in the current range, 14 DC - 11 in the current range)
Percentage of tests resulting with a prime: 0.0136
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There's someone in our head but it's not us. |
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Completed tasks: 100,540
Credit: 2,292,850.31
Primes found: 13 (8 Primary)
Percentage of tests resulting with a prime: 0.0129 |
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LumiukkoVolunteer tester
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Posts: 165
ID: 25183
Credit: 870,503,958
RAC: 37,406
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Completed tasks : 342523
Credit: 5,209,707.91
Primes found: 57 ? (38 initial finder + 20 doublechecker = 58)
Percentage of tests resulting with a prime: 0.0166 (0.0169)
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My results look more like Crun-chi's:
Completed tasks 270896
Credit 10,813,292.59
Primes found 22
Percentage of tests resulting with a prime 0.0081
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Completed tasks: 50627
Credit: 2,020,742.51
Primes found: 1
Percentage of tests resulting with a prime: 0.002 |
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tngSend message
Joined: 29 Aug 10
Posts: 467
ID: 66603
Credit: 45,733,133,395
RAC: 22,893,527
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Completed tasks: 1487105
Credit: 54,941,721.25
Primes found 167
Percentage of tests resulting with a prime 0.0112
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Completed tasks 209232
Credit 7,415,906.60
Primes found 30 (18 as initial finder)
Percentage of tests resulting with a prime 0.0143
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Largest Primes to Date:
As Double Checker: SR5 109208*5^1816285+1 Dgts-1,269,534
As Initial Finder: SR5 243944*5^1258576-1 Dgts-879,713
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Completed tasks : 654
Credit: 26143
Primes: 1 (initial)
Percentage: 0.1529
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Dave
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Well done :)!
Now print it out & frame it. In decimal form. |
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Completed tasks: 1487105
Credit: 54,941,721.25
Primes found 167
Percentage of tests resulting with a prime 0.0112
We have a very similar hit rate:
Completed tasks 45010
Credit 1,796,707.78
Primes found 5
Percentage of tests resulting with a prime 0.0111
For me to match your current credit, I would need over 4 years of nonstop SGS crunching. Disgusting! :-) |
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I was lucky enough well done to my slow pc :) |
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Crun-chiVolunteer tester
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I was lucky enough well done to my slow pc :)
Some have lucky, some have fast CPU :)
In both cases congratulations!
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92*10^1439761-1 NEAR-REPDIGIT PRIME :) :) :)
4 * 650^498101-1 CRUS PRIME
2022202116^131072+1 GENERALIZED FERMAT
Proud member of team Aggie The Pew. Go Aggie! |
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Metin Sariyar wrote: Completed tasks : 654
Credit: 26143
Primes: 1 (initial)
Percentage: 0.1529
Congratulations !
Metin Sariyar wrote: I was lucky enough well done to my slow pc :)
Indeed.
I'm still searching
Completed tasks 15456
Credit 616,903.66
Primes found 0 |
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Metin Sariyar wrote: Completed tasks : 654
Credit: 26143
Primes: 1 (initial)
Percentage: 0.1529
Congratulations !
Metin Sariyar wrote: I was lucky enough well done to my slow pc :)
Indeed.
I'm still searching
Completed tasks 15456
Credit 616,903.66
Primes found 0
Wow thats also hard to achieve same probabilities working for every situation :) |
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Dave
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It took me 29144 units & 1,163,226.39 credit to find my first SGS prime on 21 Feb 2015. |
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GDBSend message
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It took me 29144 units & 1,163,226.39 credit to find my first SGS prime on 21 Feb 2015.
Technically, you didn't find an SGS prime. If you had found an SGS prime, it would be major worldwide news. What you did find was a common, everyday, ordinary prime during SGS prime search. We might have a million or more of these common primes, before we find a new actual SGS prime. |
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It took me 29144 units & 1,163,226.39 credit to find my first SGS prime on 21 Feb 2015.
Technically, you didn't find an SGS prime. If you had found an SGS prime, it would be major worldwide news. What you did find was a common, everyday, ordinary prime during SGS prime search. We might have a million or more of these common primes, before we find a new actual SGS prime.
Yep, the prime I found just a prime of the form n*2^x-1 :)
2*(n*2^x-1)+1 must also be a prime to find a sgs prime thats why I run sgs with the hope to find such a prime :) |
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Dave
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Ok. You know what I meant anyway. |
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mackerelVolunteer tester
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I think it ok to say SGS prime for "normal" primes found in the project, the last S being for Search and SGS referring to the project. However, it wasn't a SG prime. |
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I agree , anyway it is hard enough even to catch a normal prime , it is a dream to find a SG. So we should be happy with primes we found under SGS project. Little or big I like all primes are great :)
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3909127223745*2^1290000-1 is prime!
126055746^32768+1 is prime!
175894284^16384+1 is prime! (Private gfn server)
127511188^8192+1 is prime! (Private gfn server) |
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Completed tasks 3120
Credit 124,570.16
Primes found 1
Percentage of tests resulting with a prime 0.0321
Just found my first SG prime this afternoon. Is a nice project to run before long challenges like GFN-21 coming up. |
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dukebgVolunteer tester
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As discussed in messages above, it's better to call it "SGS prime", not "SG prime" as it's not actually a Sophie Germain pair of primes. |
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