856 655 531 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
69069909343171841889319	23	75.9	2025-02-28 22:44:18

History

Date	User	Type	Result
2025-02-28	NStorm	F	Factor: 69069909343171841889319 / TF: 75-76
2024-06-19	SRBase	NF	no factor TF: 74-75
2022-12-12	SRBase	NF	no factor TF: 73-74
2021-06-12	SRBase	NF	no factor TF: 72-73
2020-10-13	SRBase	NF	no factor TF: 71-72
2019-03-13	srow7	NF	no factor TF: 70-71
2017-01-08	ramgeis	NF	no factor TF: 68-70
2015-09-11	sasaki	NF	no factor TF: 67-68
2015-03-01	sasaki	NF	no factor TF: 66-67
2012-04-07	tsc	NF	no factor TF: 65-66
2012-04-07	tsc	NF	no factor TF: 64-65
2010-04-03	Architects Cubed	NF	no factor TF: 63-64