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Old 2021-01-01, 16:47   #320
ET_
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Default New Fermat Factor from Peter Strasser!

December 31st, 2020
New Fermat factor from Peter Strasser!
7595155767819149 . 2105+1 is a Factor of F103!!!
Peter Strasser discovered the fifth Fermat factor of this year!
Congratulations to Peter from FermatSearch, for his 4th factor, we now have 355 Fermat factors known!
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Old 2021-01-02, 05:49   #321
Gary
 
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Quote:
Originally Posted by ET_ View Post
December 31st, 2020
New Fermat factor from Peter Strasser!
7595155767819149 . 2105+1 is a Factor of F103!!!
Peter Strasser discovered the fifth Fermat factor of this year!
Congratulations to Peter from FermatSearch, for his 4th factor, we now have 355 Fermat factors known!
Congratulations Peter!!! You have the highest number of "CPU days" (by far) spent searching for Fermat factors. I am glad to see all those CPU (and GPU!) cycles are paying off.
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Old 2021-01-02, 10:11   #322
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Congratulations Peter and a very happy new year!
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Old 2021-01-17, 23:57   #323
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You may be aware that PrimeGrid found: https://primes.utm.edu/primes/page.php?id=131583
27*2^7963247 + 1 divides Fermat F(7963245)
/JeppeSN
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Old 2021-01-18, 00:32   #324
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Been a good year so far for Fermat factors.
Someone should let the owner of this site know:
http://www.prothsearch.com/fermat.html
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Old 2021-01-18, 11:04   #325
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Quote:
Originally Posted by a1call View Post
Been a good year so far for Fermat factors.
Someone should let the owner of this site know:
http://www.prothsearch.com/fermat.html
He already knows
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Old 2021-03-01, 15:03   #326
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Smile My FIRST Fermat Factor, and the first discovered by an Italian

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!
-

Last fiddled with by axn on 2021-03-01 at 15:30
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Old 2021-03-01, 15:14   #327
Viliam Furik
 
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Quote:
Originally Posted by ET_ View Post
March 1st, 2021
New Fermat factor from Luigi Morelli!
74327396788321657 . 2[sup]42[/sup/]+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, and happy birthday!
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Old 2021-03-01, 15:57   #328
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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!
-
Awesome, especially for such a low n.
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Old 2021-03-01, 16:38   #329
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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!
<snip>
This will necessitate another revision besides an addition to the list of known factors at http://www.prothsearch.com/fermat.html. The exponent 40 is (soon to be was) on the "Character unknown" list near the end of the page
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Old 2021-03-01, 22:08   #330
tServo
 
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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!
-
Outstanding !
Congrats !
Not only did you find 'a' factor but the 1st factor for that Fermat number.
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