671 162 777 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 2⁸⁴

Factored

Factor	Digits	Bits	Date
56071553606536193837231	23	75.6	2025-03-13 13:53:24

History

Date	User	Type	Result
2025-03-13	NStorm	F	Factor: 56071553606536193837231 / TF: 75-76
2024-05-16	Naegi Makoto	NF	no factor TF: 68-69
2024-03-04	SRBase	NF	no factor TF: 74-75
2022-10-12	SRBase	NF	no factor TF: 73-74
2021-05-03	SRBase	NF	no factor TF: 72-73
2020-09-29	SRBase	NF	no factor TF: 71-72
2020-06-05	SRBase	NF	no factor TF: 70-71
2018-09-28	Niels_Mache_Nextcloud	NF	no factor TF: 69-70
2018-03-31	Conductor	NF	no factor TF: 68-69
2017-01-14	NoPolarBearsHere	NF	no factor TF: 67-68
2014-07-08	sasaki	NF	no factor TF: 66-67
2013-04-19	ramgeis	NF	no factor TF: 65-66
2012-01-24	sasaki3	NF	no factor TF: 64-65
2010-07-25	Architects Cubed	NF	no factor TF: 63-64