491 563 333 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 2⁸²

Factored

Factor	Digits	Bits	Date
40403918944497831646057	23	75.1	2025-03-17 12:31:12

History

Date	User	Type	Result
2025-03-17	NStorm	F	Factor: 40403918944497831646057 / TF: 75-76
2023-12-29	SRBase	NF	no factor TF: 74-75
2022-07-02	SRBase	NF	no factor TF: 73-74
2021-03-12	SRBase	NF	no factor TF: 72-73
2020-08-23	SRBase	NF	no factor TF: 71-72
2019-04-13	meracayn	NF	no factor TF: 70-71
2018-06-07	sasaki	NF	no factor TF: 69-70
2018-03-20	sasaki	NF	no factor TF: 68-69
2016-05-16	sasaki	NF	no factor TF: 67-68
2016-04-12	monst	NF	no factor TF: 66-67
2014-10-23	tsc	NF	no factor TF: 65-66
2011-12-18	sasaki3	NF	no factor TF: 64-65
2010-04-03	Architects Cubed	NF	no factor TF: 63-64