40 380 401 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 2⁷²

P-1

B1 =	1250000
B2 =	25000000

Status	Date	User	Residue	Shift
Verified	2008-03-12	Ahmer Ali	88BED4FC86E96A32	29627833
Verified	2016-02-10	ccie	88BED4FC86E96A32	4241611

History

Date	User	Type	Result
2020-09-27	Sid & Andy	NF	no factor from 2^74 to 2^75
2020-07-30	Sid & Andy	NF-PM1	B1=1250000, B2=25000000, E=6
2020-01-02	-Anonymous-	NF	no factor from 2^73 to 2^74
2019-10-11	-Anonymous-	NF	no factor from 2^72 to 2^73
2016-02-10	ccie	C-LL	88BED4FC86E96A32
2015-03-06	Gordon Spence	NF	no factor from 2^71 to 2^72
2015-01-09	The Mawn	NF	no factor from 2^70 to 2^71
2015-01-09	The Mawn	NF	no factor from 2^69 to 2^70