247 980 389 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Composite: 1 known prime factor

Trial Factored to 2⁷⁶

TF target 2⁷⁹

Factored

Factor	Digits	Bits	Date
40959040973649758805257	23	75.1	2025-01-21 17:20:02

History

Date	User	Type	Result
2025-01-21	NStorm	F	Factor: 40959040973649758805257 / TF: 75-76
2023-06-30	SRBase	NF	no factor TF: 74-75
2022-02-05	SRBase	NF	no factor TF: 73-74
2020-11-20	SRBase	NF	no factor TF: 72-73
2020-06-28	SRBase	NF	no factor TF: 71-72
2020-04-30	SRBase	NF	no factor TF: 70-71
2019-03-17	Chabot Prime	NF	no factor TF: 69-70
2018-05-25	Niels_Mache_Nextcloud	NF	no factor TF: 68-69
2016-10-19	Xolotl	NF	no factor TF: 67-68
2015-12-13	el grocco	NF	no factor TF: 66-67
2014-04-28	tsc	NF	no factor TF: 65-66
2011-07-22	ALS	NF	no factor TF: 64-65