556 666 529 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 2⁸³

Factored

Factor	Digits	Bits	Date
51439658212349491656401	23	75.4	2025-03-21 14:42:13

History

Date	User	Type	Result
2025-03-21	NStorm	F	Factor: 51439658212349491656401 / TF: 75-76
2024-01-22	SRBase	NF	no factor TF: 74-75
2022-08-18	SRBase	NF	no factor TF: 73-74
2021-03-30	SRBase	NF	no factor TF: 72-73
2020-09-02	SRBase	NF	no factor TF: 71-72
2019-12-01	sasaki	NF	no factor TF: 70-71
2018-11-02	Niels_Mache_Nextcloud	NF	no factor TF: 69-70
2018-03-22	sasaki	NF	no factor TF: 68-69
2016-11-15	sasaki	NF	no factor TF: 67-68
2015-12-02	sasaki	NF	no factor TF: 66-67
2014-09-17	sasaki	NF	no factor TF: 65-66
2011-07-16	Architects Cubed	NF	no factor TF: 64-65