148 980 547 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

No known factors, not tested for primality

TF

No factors below 2⁷⁷

TF target 2⁷⁷

P-1

B1 =	771000
B2 =	37360890

Assigned

Assigned	User	Work Type	Stage	% Done	Updated	Expired
2025-10-05	fre_games	trial factoring		0.00 %	2025-10-05

History

Date	User	Type	Result
2024-11-28	Sid & Andy	NF	no factor from 2^76 to 2^77
2024-09-10	Ryan Propper	NF-PM1	B1=771000, B2=37360890
2024-07-29	SRBase	NF	no factor from 2^75 to 2^76
2023-02-03	SRBase	NF	no factor from 2^74 to 2^75
2021-11-14	SRBase	NF	no factor from 2^73 to 2^74
2016-12-23	curtisc	NF	no factor from 2^72 to 2^73
2016-12-16	arnaud	NF	no factor from 2^71 to 2^72
2016-12-15	guru	NF	no factor from 2^70 to 2^71
2016-12-14	arnaud	NF	no factor from 2^69 to 2^70
2016-12-13	airbreather	NF	no factor from 2^68 to 2^69
2016-04-05	Derek	NF	no factor from 2^67 to 2^68
2015-03-14	sasaki3	NF	no factor from 2^66 to 2^67
2013-01-08	Arne Kleppestrand	NF	no factor from 2^65 to 2^66
2011-01-09	Richard	NF	no factor from 2^64 to 2^65