568 666 661 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 2⁸³

Factored

Factor	Digits	Bits	Date
50526463564092214473121	23	75.4	2025-03-13 23:43:27

History

Date	User	Type	Result
2025-03-13	NStorm	F	Factor: 50526463564092214473121 / TF: 75-76
2024-01-29	SRBase	NF	no factor TF: 74-75
2022-08-24	SRBase	NF	no factor TF: 73-74
2021-04-03	SRBase	NF	no factor TF: 72-73
2020-09-05	SRBase	NF	no factor TF: 71-72
2020-02-26	sasaki	NF	no factor TF: 70-71
2018-10-30	Niels_Mache_Nextcloud	NF	no factor TF: 69-70
2018-05-03	sasaki	NF	no factor TF: 68-69
2016-12-08	sasaki	NF	no factor TF: 67-68
2015-11-07	sasaki	NF	no factor TF: 66-67
2014-08-05	sasaki	NF	no factor TF: 65-66
2011-11-06	Architects Cubed	NF	no factor TF: 64-65
2010-03-13	Architects Cubed	NF	no factor TF: 63-64