845 557 667 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
54221237891094248590223	23	75.5	2025-03-02 06:14:55

History

Date	User	Type	Result
2025-03-02	NStorm	F	Factor: 54221237891094248590223 / TF: 75-76
2024-06-14	SRBase	NF	no factor TF: 74-75
2022-12-03	SRBase	NF	no factor TF: 73-74
2021-06-11	SRBase	NF	no factor TF: 72-73
2020-10-12	SRBase	NF	no factor TF: 71-72
2019-10-08	srow7	NF	no factor TF: 70-71
2017-02-08	ramgeis	NF	no factor TF: 68-70
2015-08-23	sasaki3	NF	no factor TF: 67-68
2015-02-12	sasaki	NF	no factor TF: 66-67
2012-04-02	vapaddy	NF	no factor TF: 65-66
2012-04-02	vapaddy	NF	no factor TF: 64-65
2010-04-02	Architects Cubed	NF	no factor TF: 63-64