255 868 999 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
58345254199182768864391	23	75.6	2025-01-31 07:13:56

History

Date	User	Type	Result
2025-04-27	NStorm	NF-PM1	B1=500000, B2=15057462
2025-01-31	NStorm	NF-PM1	B1=50000, B2=1561518
2025-01-31	NStorm	F	Factor: 58345254199182768864391 / TF: 75-76
2022-12-29	Roger Kohn	NF	no factor TF: 74-75
2022-02-21	SRBase	NF	no factor TF: 73-74
2020-11-22	SRBase	NF	no factor TF: 72-73
2020-07-01	SRBase	NF	no factor TF: 71-72
2020-05-02	SRBase	NF	no factor TF: 70-71
2019-04-20	Chabot Prime	NF	no factor TF: 69-70
2018-06-10	Niels_Mache_Nextcloud	NF	no factor TF: 68-69
2015-10-10	caddr	NF	no factor TF: 66-68
2013-11-13	haphaeu	NF	no factor TF: 65-66
2011-08-04	OS1	NF	no factor TF: 64-65
2010-03-08	Architects Cubed	NF	no factor TF: 63-64
2010-03-08	Architects Cubed	NF	no factor TF: 62-63