68 804 621 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

TF

No factors below 2⁷⁵

TF target 2⁷⁴

P-1

B1 =	630000
B2 =	12600000

Status	Date	User	Residue	Shift
Verified	2016-06-20	tjaehnsi	C6F42EF68E87B61F	54306404
Verified	2023-05-12	Sergey Nosov	C6F42EF68E87B61F	32259979

History

Date	User	Type	Result
2023-05-12	Sergey Nosov	C-LL	C6F42EF68E87B61F
2016-06-20	tjaehnsi	C-LL	C6F42EF68E87B61F
2016-03-05	Tim Sorbera	NF	no factor from 2^74 to 2^75
2014-12-28	Todd Walke	NF-PM1	B1=630000, B2=12600000, E=6
2014-10-23	brilong	NF	no factor from 2^73 to 2^74
2014-10-23	brilong	NF	no factor from 2^72 to 2^73
2014-06-30	Jerry Hallett	NF	no factor from 2^71 to 2^72
2012-07-29	TMarshall	NF	no factor from 2^70 to 2^71
2012-03-18	-Anonymous-	NF	no factor from 2^69 to 2^70
2010-04-15	-Anonymous-	NF	no factor from 2^68 to 2^69
2010-04-09	-Anonymous-	NF	no factor from 2^67 to 2^68
2010-01-28	Ungelovende	NF	no factor from 2^66 to 2^67
2010-01-22	runesk	NF	no factor from 2^65 to 2^66
2010-01-21	Jeffrey	NF	no factor from 2^64 to 2^65
2008-11-24	1997rj7	NF	no factor to 2^64