311 116 081 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
56282556557153259954017	23	75.6	2025-02-27 21:50:42

History

Date	User	Type	Result
2025-02-27	NStorm	F	Factor: 56282556557153259954017 / TF: 75-76
2023-08-30	SRBase	NF	no factor TF: 74-75
2022-03-20	SRBase	NF	no factor TF: 73-74
2020-12-31	Ruslan Borisov	NF	no factor TF: 72-73
2020-07-23	SRBase	NF	no factor TF: 71-72
2020-05-15	SRBase	NF	no factor TF: 70-71
2018-07-14	Jacques MOLNE	NF	no factor TF: 69-70
2018-07-14	Jacques MOLNE	NF	no factor TF: 68-69
2016-12-12	rubikvn2100	NF	no factor TF: 67-68
2016-02-21	Thor Vik	NF	no factor TF: 66-67
2014-01-19	Richard	NF	no factor TF: 65-66
2011-10-24	Damian Silvestre	NF	no factor TF: 64-65