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 : Wieferich and Wall-Sun-Sun Prime Search : WW by the numbers

Author Message
Profile Michael GoetzProject donor
Volunteer moderator
Project administrator
Avatar
Send message
Joined: 21 Jan 10
Posts: 13625
ID: 53948
Credit: 273,868,019
RAC: 255,523
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 Turquoise: Earned 5,000,000 credits (5,132,712)Cullen LLR Ruby: Earned 2,000,000 credits (3,804,281)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 Sapphire: Earned 20,000,000 credits (20,751,038)PSP LLR Turquoise: Earned 5,000,000 credits (5,197,957)SoB LLR Sapphire: Earned 20,000,000 credits (36,067,618)SR5 LLR Jade: Earned 10,000,000 credits (10,007,110)SGS LLR Ruby: Earned 2,000,000 credits (3,718,606)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 Sapphire: Earned 20,000,000 credits (28,244,000)GFN Emerald: Earned 50,000,000 credits (77,916,132)PSA Jade: Earned 10,000,000 credits (12,445,029)
Message 146001 - Posted: 2 Dec 2020 | 12:59:28 UTC
Last modified: 1 Jan 2021 | 18:58:40 UTC

The same questions regarding "When?" and "How much?" keep coming up over and over again, so I put together this single post to list all the relevant numbers.


  • Known Wieferich primes: 1093 and 3511

  • Known Wall-Sun-Sun primes: none

  • Starting point for our Wieferich and WSS search: 0

  • Current planned end of our Wieferich and WSS search: 2^64, or about 1.8e19

  • Current range of numbers tested in each task (both Wieferich and WS are tested in each task): 3e12

  • Current expectation for the total number of workunits: (including older workunits that were smaller): 6,418,371

  • Current expectation for the total number of tasks: 12,836,742 (two tasks per workunit)

  • Starting point for PrimeGrid's prior Wieferich search on PRPNet: 3e15

  • Ending point for PrimeGrid's prior Wieferich search on PRPNet: 6.07132e17 (or 607.132e15)

  • Starting point for PrimeGrid's prior Wall-Sun-Sun search on PRPNet: 9.7e14 (or 0.97e15)

  • Ending point for PrimeGrid's prior Wall-Sun-Sun search on PRPNet: 2.6438336e17 (or 264.38336e15)

  • At the very beginning of the current search (completed in the first day), when we were double checking numbers smaller than what PRPNet searched, we intentionally skipped reporting near primes. It's not feasible to have a comprehensive list of all near primes at those small sizes, so we couldn't tell what was new and what might have been a new near prime. We did make sure there were no actual primes that had previously been missed.

    Rules for what is and is not shown:

    • Previously discovered primes and special instances are not shown, otherwise:

    • All primes are shown.

    • For very small numbers, below 1e9, special instances with |A| <= 10 are shown. 1e9 is 0.1% of the first task so this only applies to the ww_2 workunit.

    • For numbers between 1e9 and the end of our PRPNet search, special instances with |A| <= 100 are shown.

    • For numbers beyond the PRPNet search, special instances with |A| <= 1000 are shown.



(Edited 1/1/21 to reflect search limit being extended from 2^62 to 2^64 and tasks getting 3x larger.)
____________
My lucky number is 75898524288+1

Message boards : Wieferich and Wall-Sun-Sun Prime Search : WW by the numbers

[Return to PrimeGrid main page]
DNS Powered by DNSEXIT.COM
Copyright © 2005 - 2021 Rytis Slatkevičius (contact) and PrimeGrid community. Server load 2.38, 2.71, 2.63
Generated 14 May 2021 | 17:48:11 UTC