686 663 357 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
52973891905718563738993	23	75.5	2025-03-13 17:34:26

History

Date	User	Type	Result
2025-03-13	NStorm	F	Factor: 52973891905718563738993 / TF: 75-76
2024-03-09	SRBase	NF	no factor TF: 74-75
2022-10-19	SRBase	NF	no factor TF: 73-74
2021-05-03	SRBase	NF	no factor TF: 72-73
2020-09-27	SRBase	NF	no factor TF: 71-72
2020-06-05	SRBase	NF	no factor TF: 70-71
2018-09-21	Niels_Mache_Nextcloud	NF	no factor TF: 69-70
2018-06-25	BloodERazor	NF	no factor TF: 68-69
2016-12-03	NoPolarBearsHere	NF	no factor TF: 67-68
2014-08-06	sasaki	NF	no factor TF: 66-67
2014-02-12	sasaki	NF	no factor TF: 65-66
2012-02-02	mm	NF	no factor TF: 64-65
2010-07-16	Architects Cubed	NF	no factor TF: 63-64