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Message boards : Fermat Divisor Search : Success! Fermat Divisor Found!

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Profile JeppeSNProject donor
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Joined: 5 Apr 14
Posts: 1011
ID: 306875
Credit: 12,036,914
RAC: 14,561
Found 1 prime in the 2020 Tour de Primes321 LLR Silver: Earned 100,000 credits (360,928)Cullen LLR Bronze: Earned 10,000 credits (98,851)ESP LLR Silver: Earned 100,000 credits (139,922)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (35,236)PPS LLR Ruby: Earned 2,000,000 credits (2,933,416)PSP LLR Silver: Earned 100,000 credits (212,242)SoB LLR Silver: Earned 100,000 credits (237,390)SR5 LLR Bronze: Earned 10,000 credits (16,010)SGS LLR Bronze: Earned 10,000 credits (32,969)TRP LLR Bronze: Earned 10,000 credits (71,060)Woodall LLR Silver: Earned 100,000 credits (109,455)321 Sieve Silver: Earned 100,000 credits (175,037)PSA Turquoise: Earned 5,000,000 credits (7,614,290)
Message 136641 - Posted: 24 Jan 2020 | 13:43:16 UTC - in response to Message 132601.

All known Fermat divisors are listed here. We expect this search to find about two new Fermat divisors; it has about an 85% chance of finding at least one. With the exception of the small k=19683 candidates, any new Fermat divisor found in this subproject would overtake 193*2^3329782+1 as the largest one known.


Success! We found 13*2^5523860+1 as a factor of

F5523858 = 2^(2^5523858) + 1

See work unit (until it is purged) and Top 5k entry and current Top 20. Will probably soon appear on fermatsearch.org and on prothsearch.com.

The lucky finder now has two F badges.

An official announcement from PrimeGrid will appear.

/JeppeSN

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Message boards : Fermat Divisor Search : Success! Fermat Divisor Found!

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