mersenneforum.org  

Go Back   mersenneforum.org > Factoring Projects > FermatSearch

Reply
 
Thread Tools
Old 2021-03-02, 01:50   #331
Batalov
 
Batalov's Avatar
 
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2

10,181 Posts
Default

Batalov is offline   Reply With Quote
Old 2021-03-02, 04:19   #332
Gary
 
Gary's Avatar
 
"Gary Gostin"
Aug 2015
Texas, USA

2·37 Posts
Default

Quote:
Originally Posted by ET_ View Post
March 1st, 2021
New Fermat factor from Luigi Morelli!
74327396788321657 . 242+1 is a Factor of F40!!!
Miracles happen from time to time... and I discovered the second Fermat factor of this year, my very first on my birthday's week!
I started searching with Leonid Durman in the late 1990.
The factor has 30 digits, and was found using a Intel 9800x with a Nvidia RTX2060 and the program mmff from George Woltman.
Congratulations to FermatSearch, we now have 357 Fermat factors known!
-
Congratulations Luigi! And a Happy Birthday (best Birthday present ever!)

Gary is offline   Reply With Quote
Old 2021-03-02, 06:49   #333
LaurV
Romulan Interpreter
 
LaurV's Avatar
 
"name field"
Jun 2011
Thailand

24×643 Posts
Default

Congrats and Happy birthday. You just missed your BD present, I think now you need to learn your own address better!

(trivia: for who doesn't know, we sent Luigi a parcel to Italy, which is now on the way back to us in Thailand, because he gave us a wrong address and Italian post could not find him . He had a whole adventure trying to get that parcel from the office, but at the end, it was futile, they could not figure out where the parcel is, and blamed the couriers. Morons!)

On the other hand, you just hit Serge so hard with your discovery, he's malding with envy, in spite of lifting that finger, look at his face!

Click image for larger version

Name:	serge malding.JPG
Views:	252
Size:	69.7 KB
ID:	24434

edit: downside of having multiple, random avatars, haha

Last fiddled with by LaurV on 2021-03-02 at 06:55
LaurV is offline   Reply With Quote
Old 2021-03-05, 12:19   #334
ET_
Banned
 
ET_'s Avatar
 
"Luigi"
Aug 2002
Team Italia

4,861 Posts
Thumbs up And again!

March 4th, 2011 2021
New Fermat factor from Gostin and FermatSearch!
14698299 . 225602+1 is a Factor of F25599!!!
Gary Gostin discovered the third Fermat factor of this year!
This was discovered on an AMD EPYC 7702P based server running pmfs which incorporates George Woltman's gwnum library.
Congratulations to Gary from FermatSearch, for his 85th factor, we now have 358 Fermat factors known!

Last fiddled with by Dr Sardonicus on 2021-03-05 at 13:59 Reason: xinfig posty
ET_ is online now   Reply With Quote
Old 2021-03-17, 20:43   #335
philmoore
 
philmoore's Avatar
 
"Phil"
Sep 2002
Tracktown, U.S.A.

112110 Posts
Default

Congratulations, Luigi, this was a well-deserved discovery and the fourth smallest Fermat number with unknown character. I remember that you were also searching on F31 when you were scooped on that one, but you were such a good sport, remarking that it was great for the Fermat factor community that it was discovered.
philmoore is offline   Reply With Quote
Old 2021-03-18, 11:41   #336
ET_
Banned
 
ET_'s Avatar
 
"Luigi"
Aug 2002
Team Italia

10010111111012 Posts
Default

Quote:
Originally Posted by philmoore View Post
Congratulations, Luigi, this was a well-deserved discovery and the fourth smallest Fermat number with unknown character. I remember that you were also searching on F31 when you were scooped on that one, but you were such a good sport, remarking that it was great for the Fermat factor community that it was discovered.
Thank you Phil
It was so long ago, and still so clear in your mind!
Now I can say I did the right thing. Fermat rules!
ET_ is online now   Reply With Quote
Old 2021-08-12, 11:19   #337
ET_
Banned
 
ET_'s Avatar
 
"Luigi"
Aug 2002
Team Italia

4,861 Posts
Default

Aug 12th, 2021
New Fermat factor from Erwin Doescher and FermatSearch!
749893 . 266648+1 is a Factor of F66643!!!
Erwin Doescher discovered the fourth Fermat factor of this year!
This factor was discovered running LLR and PFGW which incorporates George Woltman's gwnum library.
Congratulations to Erwin from FermatSearch, for his first factor, we now have 359 Fermat factors known!

Last fiddled with by ET_ on 2021-08-12 at 11:19 Reason: closing tags
ET_ is online now   Reply With Quote
Old 2021-08-12, 13:29   #338
Gary
 
Gary's Avatar
 
"Gary Gostin"
Aug 2015
Texas, USA

2·37 Posts
Default

Quote:
Originally Posted by ET_ View Post
Aug 12th, 2021
New Fermat factor from Erwin Doescher and FermatSearch!
749893 . 266648+1 is a Factor of F66643!!!
Erwin Doescher discovered the fourth Fermat factor of this year!
This factor was discovered running LLR and PFGW which incorporates George Woltman's gwnum library.
Congratulations to Erwin from FermatSearch, for his first factor, we now have 359 Fermat factors known!
Congratulations Erwin!!!
Gary is offline   Reply With Quote
Old 2021-08-12, 13:38   #339
rogue
 
rogue's Avatar
 
"Mark"
Apr 2003
Between here and the

7,213 Posts
Default

Quote:
Originally Posted by ET_ View Post
Aug 12th, 2021
New Fermat factor from Erwin Doescher and FermatSearch!
749893 . 266648+1 is a Factor of F66643!!!
Erwin Doescher discovered the fourth Fermat factor of this year!
This factor was discovered running LLR and PFGW which incorporates George Woltman's gwnum library.
Congratulations to Erwin from FermatSearch, for his first factor, we now have 359 Fermat factors known!
What program was used to sieve the range before testing?
rogue is offline   Reply With Quote
Old 2021-08-12, 20:44   #340
ET_
Banned
 
ET_'s Avatar
 
"Luigi"
Aug 2002
Team Italia

4,861 Posts
Default

Quote:
Originally Posted by rogue View Post
What program was used to sieve the range before testing?
Erwin wrote a GPU based sieve of his own. We are waiting to know more about it
ET_ is online now   Reply With Quote
Old 2021-11-29, 10:53   #341
houding
 
houding's Avatar
 
"Adolf"
Nov 2013
South Africa

2·3·11 Posts
Default

I don't go to the fermatsearch website that often, and I see there has a new factor been found.


Congratulations
houding is offline   Reply With Quote
Reply

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
New Generalized Fermat factors Batalov Factoring 149 2017-02-20 12:06
Best case Fermat Factors yourskadhir Miscellaneous Math 5 2012-12-12 04:18
Generalized Fermat factors - why? siegert81 Factoring 1 2011-09-05 23:00
Weighted Fermat factors Top 20 Merfighters Factoring 0 2010-04-13 14:16
Fermat 12 factors already found? UberNumberGeek Factoring 6 2009-06-17 17:22

All times are UTC. The time now is 11:46.


Thu Jun 1 11:46:24 UTC 2023 up 287 days, 9:14, 0 users, load averages: 0.84, 0.90, 0.87

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2023, 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