305 551 339 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 2⁸⁰

Factored

Factor	Digits	Bits	Date
58560943229410132619687	23	75.6	2025-03-14 21:54:35

History

Date	User	Type	Result
2025-03-14	NStorm	F	Factor: 58560943229410132619687 / TF: 75-76
2023-08-28	SRBase	NF	no factor TF: 74-75
2022-03-20	SRBase	NF	no factor TF: 73-74
2020-12-25	SRBase	NF	no factor TF: 72-73
2020-07-22	SRBase	NF	no factor TF: 71-72
2020-05-13	SRBase	NF	no factor TF: 70-71
2017-11-23	Jacques MOLNE	NF	no factor TF: 69-70
2017-07-17	Jacques MOLNE	NF	no factor TF: 68-69
2016-12-07	rubikvn2100	NF	no factor TF: 67-68
2016-02-14	Mausbieber_Gucky	NF	no factor TF: 66-67
2014-01-13	gucs	NF	no factor TF: 65-66
2011-10-17	sasaki3	NF	no factor TF: 64-65