252 849 199 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 2⁷⁹

Factored

Factor	Digits	Bits	Date
55920780388410139450393	23	75.6	2025-01-27 08:19:07

History

Date	User	Type	Result
2025-01-27	NStorm	F	Factor: 55920780388410139450393 / TF: 75-76
2023-07-17	SRBase	NF	no factor TF: 74-75
2022-02-08	SRBase	NF	no factor TF: 73-74
2020-12-02	SRBase	NF	no factor TF: 72-73
2020-06-30	SRBase	NF	no factor TF: 71-72
2020-05-01	SRBase	NF	no factor TF: 70-71
2017-06-28	mikr	NF	no factor TF: 69-70
2017-06-28	mikr	NF	no factor TF: 68-69
2015-03-29	caddr	NF	no factor TF: 66-68
2013-11-19	Yan Ruimin China	NF	no factor TF: 65-66
2011-07-30	Richard	NF	no factor TF: 64-65
2010-05-16	Architects Cubed	NF	no factor TF: 63-64
2010-03-24	monst	NF	no factor TF: 62-63