261 130 777 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 2⁸⁰

Factored

Factor	Digits	Bits	Date
49534194734050731685991	23	75.4	2025-02-05 11:21:08

History

Date	User	Type	Result
2025-02-05	NStorm	F	Factor: 49534194734050731685991 / TF: 75-76
2023-02-10	volki	NF	no factor TF: 74-75
2022-02-21	SRBase	NF	no factor TF: 73-74
2020-11-26	SRBase	NF	no factor TF: 72-73
2020-07-04	SRBase	NF	no factor TF: 71-72
2020-05-03	SRBase	NF	no factor TF: 70-71
2019-05-12	Chabot Prime	NF	no factor TF: 69-70
2018-06-21	Niels_Mache_Nextcloud	NF	no factor TF: 68-69
2016-07-21	XZT	NF	no factor TF: 67-68
2015-12-23	Conductor	NF	no factor TF: 66-67
2013-11-18	tsc	NF	no factor TF: 65-66
2011-08-12	albin_pouilles	NF	no factor TF: 64-65
2010-03-14	Torchwood Institute	NF	no factor TF: 63-64
2010-03-14	Torchwood Institute	NF	no factor TF: 62-63