66 260 627 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 =	595000
B2 =	11751250

Status	Date	User	Residue	Shift
Verified	2015-03-16	curtisc	5DEE214FB7513D9C	7616599
Verified	2023-08-30	Semyon Musatov	5DEE214FB7513D9C	39484231

History

Date	User	Type	Result
2023-08-30	Semyon Musatov	C-LL	5DEE214FB7513D9C
2021-09-28	Richard Thomas	NF	no factor from 2^74 to 2^75
2015-03-16	curtisc	C-LL	5DEE214FB7513D9C
2014-08-30	butera	NF-PM1	B1=595000, B2=11751250, E=6
2014-03-24	Bill Staffen	NF	no factor from 2^73 to 2^74
2014-03-24	Bill Staffen	NF	no factor from 2^72 to 2^73
2014-03-24	Bill Staffen	NF	no factor from 2^71 to 2^72
2012-07-11	Isidre3x2	NF	no factor from 2^70 to 2^71
2012-02-06	Bio1ogics	NF	no factor from 2^69 to 2^70
2010-01-21	connor	NF	no factor from 2^68 to 2^69
2010-01-17	afj	NF	no factor from 2^67 to 2^68
2010-01-11	SAHS Science Dept	NF	no factor from 2^66 to 2^67
2010-01-09	SAHS Science Dept	NF	no factor from 2^65 to 2^66
2009-11-29	GrunwalderGIMP	NF	no factor from 2^64 to 2^65
2009-05-10	1997rj7	NF	no factor to 2^64