488 444 423 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
55273701245325428965511	23	75.5	2025-03-12 16:31:59

History

Date	User	Type	Result
2025-03-12	NStorm	F	Factor: 55273701245325428965511 / TF: 75-76
2023-12-28	SRBase	NF	no factor TF: 74-75
2022-07-01	SRBase	NF	no factor TF: 73-74
2021-03-07	SRBase	NF	no factor TF: 72-73
2020-08-23	SRBase	NF	no factor TF: 71-72
2020-05-31	SRBase	NF	no factor TF: 70-71
2018-12-20	Niels_Mache_Nextcloud	NF	no factor TF: 69-70
2018-05-07	sasaki	NF	no factor TF: 68-69
2016-07-01	sasaki	NF	no factor TF: 67-68
2016-04-06	sasaki	NF	no factor TF: 66-67
2014-10-21	arnaud	NF	no factor TF: 65-66