565 551 143 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
56877798502249675308209	23	75.6	2025-03-26 10:33:03

History

Date	User	Type	Result
2025-03-26	NStorm	F	Factor: 56877798502249675308209 / TF: 75-76
2024-01-26	SRBase	NF	no factor TF: 74-75
2022-09-02	SRBase	NF	no factor TF: 73-74
2021-04-09	SRBase	NF	no factor TF: 72-73
2020-09-05	SRBase	NF	no factor TF: 71-72
2019-12-20	sasaki	NF	no factor TF: 70-71
2018-11-06	Niels_Mache_Nextcloud	NF	no factor TF: 69-70
2018-05-20	sasaki	NF	no factor TF: 68-69
2016-12-06	sasaki	NF	no factor TF: 67-68
2015-11-09	sasaki	NF	no factor TF: 66-67
2013-03-28	america64	NF	no factor TF: 65-66
2011-09-18	Architects Cubed	NF	no factor TF: 64-65
2010-03-12	Architects Cubed	NF	no factor TF: 63-64