521 267 777 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 2⁸³

Factored

Factor	Digits	Bits	Date
48534880622236355447839	23	75.4	2025-03-21 05:26:42

History

Date	User	Type	Result
2025-03-21	NStorm	F	Factor: 48534880622236355447839 / TF: 75-76
2024-01-11	SRBase	NF	no factor TF: 74-75
2022-08-03	SRBase	NF	no factor TF: 73-74
2021-03-19	SRBase	NF	no factor TF: 72-73
2020-08-26	SRBase	NF	no factor TF: 71-72
2019-06-24	sasaki	NF	no factor TF: 70-71
2018-10-16	Niels_Mache_Nextcloud	NF	no factor TF: 69-70
2017-06-07	sasaki	NF	no factor TF: 68-69
2016-09-03	sasaki	NF	no factor TF: 67-68
2015-08-07	Maurizio FD - Italy	NF	no factor TF: 66-67
2014-09-28	sasaki	NF	no factor TF: 65-66
2011-12-30	albin_pouilles	NF	no factor TF: 64-65
2010-07-08	Architects Cubed	NF	no factor TF: 63-64