355 557 151 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 2⁸¹

Factored

Factor	Digits	Bits	Date
55266269258424881564959	23	75.5	2025-02-28 09:50:00

History

Date	User	Type	Result
2025-02-28	NStorm	F	Factor: 55266269258424881564959 / TF: 75-76
2023-10-06	SRBase	NF	no factor TF: 74-75
2022-04-15	SRBase	NF	no factor TF: 73-74
2020-12-20	Ruslan Borisov	NF	no factor TF: 72-73
2017-05-25	Jacques MOLNE	NF	no factor TF: 71-72
2017-05-25	Jacques MOLNE	NF	no factor TF: 69-70
2017-05-25	Jacques MOLNE	NF	no factor TF: 70-71
2016-10-04	Jacques MOLNE	NF	no factor TF: 67-69
2016-03-16	nikosz	NF	no factor TF: 66-67
2014-03-09	Chih-Wei Huang	NF	no factor TF: 65-66
2011-02-13	Architects Cubed	NF	no factor TF: 64-65