mathematica 发表于 2021-5-6 15:49:30

费马数F40的第1个素数因子

74327396788321657*2^42+1 is a Factor of   F40!!!
March 1st, 2021
New Fermat factor from Luigi Morelli!
74327396788321657*2^42+1 is a Factor of   F40!!!
Miracles happen from time to time... and I discovered the second Fermat factor of this year on my birthday's week!
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!

是2021年的第二个素数因子，但是是F40的第一个素数因子

http://www.fermatsearch.org/news.html

这个素数因子等于
326895348124320718380574179329

30位素数

mathematica 发表于 2021-5-6 15:55:01

74327396788321657是17位整数
326895348124320718380574179329是30位整数

nyy 发表于 2022-11-18 15:45:37

Prime factorsk · 2n + 1of Fermat numbersFm
and complete factoring status
Compiled by Wilfrid Keller

费马数分解状态网站，非常棒的网站，可以了解很多费马数的分解状态
http://www.prothsearch.com/fermat.html
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