951 176 581 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 2⁸⁵

Factored

Factor	Digits	Bits	Date
42617280123167471550247	23	75.2	2025-01-22 06:43:16

History

Date	User	Type	Result
2025-06-12	Greg	F	Factor: 42617280123167471550247 / TF: 75-76
2025-01-22	Dmitry Bolshakov	F	Factor: 42617280123167471550247 / TF: 75-76*
2024-05-04	MooMoo2	NF	no factor TF: 74-75
2022-12-19	SRBase	NF	no factor TF: 73-74
2021-07-04	ANONYMOUS	NF	no factor TF: 72-73
2020-10-17	SRBase	NF	no factor TF: 71-72
2018-11-18	Niels_Mache_Nextcloud	NF	no factor TF: 70-71
2015-05-08	ramgeis	NF	no factor TF: 68-70
2013-05-05	ramgeis	NF	no factor TF: 65-68
2011-04-20	linded	NF	no factor TF: 64-65
2010-05-10	linded	NF	no factor TF: 63-64