mersenneforum.org  

Go Back   mersenneforum.org > Great Internet Mersenne Prime Search > Data

Reply
 
Thread Tools
Old 2022-06-04, 03:47   #584
tuckerkao
 
"Tucker Kao"
Jan 2020
Head Base M168202123

22·33·7 Posts
Default

Quote:
Originally Posted by GP2 View Post
M245107 is a probable semi-prime.

Factor found by Sid & Andy. Test by user SRJ2877.
Does the PRP-co-factor need to be run by other users as well or not to confirm? If yes, how long will it take? Is there perhaps an upper limit on the exponent size which the alternative program can reach up to?

Quote:
Originally Posted by paulunderwood View Post
Congrats to Ryan for proving the cofactor of M78737 using FastECPP.
Not sure whether FastECPP runs like LL or not.

There were 2 users on M10443557

Last fiddled with by tuckerkao on 2022-06-04 at 04:40
tuckerkao is offline   Reply With Quote
Old 2022-06-04, 05:00   #585
petrw1
1976 Toyota Corona years forever!
 
petrw1's Avatar
 
"Wayne"
Nov 2006
Saskatchewan, Canada

3×37×47 Posts
Default

Quote:
Originally Posted by GP2 View Post
M245107 is a probable semi-prime.

Factor found by Sid & Andy. Test by user SRJ2877.
OMG I'm almost famous ...
petrw1 is online now   Reply With Quote
Old 2022-06-04, 05:06   #586
tuckerkao
 
"Tucker Kao"
Jan 2020
Head Base M168202123

22·33·7 Posts
Default

Quote:
Originally Posted by petrw1 View Post
OMG I'm almost famous ...
I thought you were Wayne. Is Sid & Andy or SRJ2877 your testing account or are they your followers?

Quote:
Originally Posted by axn View Post
Congrats @petrw1. I believe this is the first "confirmed kill" for the "low" project
Does the project manager get the credit if 1 of the follower users made the discovery?

Last fiddled with by tuckerkao on 2022-06-04 at 05:18
tuckerkao is offline   Reply With Quote
Old 2022-06-04, 05:24   #587
axn
 
axn's Avatar
 
Jun 2003

124148 Posts
Default

"Sid & Andy" is petrw1's GIMPS username
axn is offline   Reply With Quote
Old 2022-06-04, 06:54   #588
ixfd64
Bemusing Prompter
 
ixfd64's Avatar
 
"Danny"
Dec 2002
California

1001101011012 Posts
Default

Quote:
Originally Posted by tuckerkao View Post
Does the PRP-co-factor need to be run by other users as well or not to confirm? If yes, how long will it take? Is there perhaps an upper limit on the exponent size which the alternative program can reach up to?
Yes, but it is not necessary to re-run the whole test as we can also generate PRP proofs for cofactors. Verifying a proof is much faster.
ixfd64 is offline   Reply With Quote
Old 2022-06-04, 10:54   #589
mathwiz
 
Mar 2019

23×37 Posts
Default

Quote:
Originally Posted by tuckerkao View Post
Not sure whether FastECPP runs like LL or not.
I have no idea what you mean by "runs like". But... no.

FastECPP is a completely different algorithm and proof method. It can be distributed among many machines using MPI. The algorithm itself has nothing to do with LL testing.
mathwiz is offline   Reply With Quote
Old 2022-07-03, 19:04   #590
GP2
 
GP2's Avatar
 
Sep 2003

13·199 Posts
Default

M12,720,787 has been reported fully factored. The PRP test was done by user Funky Waddle.

This would be a new record, eclipsing M10,443,557 from July 2020.

Last fiddled with by GP2 on 2022-07-03 at 19:08
GP2 is offline   Reply With Quote
Reply

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Smallest exponent for mersenne not-factored preda PrimeNet 10 2018-11-04 00:47
Largest Mersenne Number Fully Factored? c10ck3r Data 49 2017-12-10 19:39
Possibility of a Fully-Factored Number Trejack FactorDB 7 2016-05-14 05:38
Estimating the number of primes in a partially-factored number CRGreathouse Probability & Probabilistic Number Theory 15 2014-08-13 18:46
Number of distinct prime factors of a Double Mersenne number aketilander Operazione Doppi Mersennes 1 2012-11-09 21:16

All times are UTC. The time now is 06:07.


Sat Aug 20 06:07:18 UTC 2022 up 2 days, 3:35, 0 users, load averages: 1.28, 1.15, 1.14

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2022, Jelsoft Enterprises Ltd.

This forum has received and complied with 0 (zero) government requests for information.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation.
A copy of the license is included in the FAQ.

≠ ± ∓ ÷ × · − √ ‰ ⊗ ⊕ ⊖ ⊘ ⊙ ≤ ≥ ≦ ≧ ≨ ≩ ≺ ≻ ≼ ≽ ⊏ ⊐ ⊑ ⊒ ² ³ °
∠ ∟ ° ≅ ~ ‖ ⟂ ⫛
≡ ≜ ≈ ∝ ∞ ≪ ≫ ⌊⌋ ⌈⌉ ∘ ∏ ∐ ∑ ∧ ∨ ∩ ∪ ⨀ ⊕ ⊗ 𝖕 𝖖 𝖗 ⊲ ⊳
∅ ∖ ∁ ↦ ↣ ∩ ∪ ⊆ ⊂ ⊄ ⊊ ⊇ ⊃ ⊅ ⊋ ⊖ ∈ ∉ ∋ ∌ ℕ ℤ ℚ ℝ ℂ ℵ ℶ ℷ ℸ 𝓟
¬ ∨ ∧ ⊕ → ← ⇒ ⇐ ⇔ ∀ ∃ ∄ ∴ ∵ ⊤ ⊥ ⊢ ⊨ ⫤ ⊣ … ⋯ ⋮ ⋰ ⋱
∫ ∬ ∭ ∮ ∯ ∰ ∇ ∆ δ ∂ ℱ ℒ ℓ
𝛢𝛼 𝛣𝛽 𝛤𝛾 𝛥𝛿 𝛦𝜀𝜖 𝛧𝜁 𝛨𝜂 𝛩𝜃𝜗 𝛪𝜄 𝛫𝜅 𝛬𝜆 𝛭𝜇 𝛮𝜈 𝛯𝜉 𝛰𝜊 𝛱𝜋 𝛲𝜌 𝛴𝜎𝜍 𝛵𝜏 𝛶𝜐 𝛷𝜙𝜑 𝛸𝜒 𝛹𝜓 𝛺𝜔