278 675 333 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 2⁸⁰

Factored

Factor	Digits	Bits	Date
72520562734365638436359	23	75.9	2025-02-10 20:26:27

History

Date	User	Type	Result
2025-02-10	NStorm	F	Factor: 72520562734365638436359 / TF: 75-76
2023-07-30	SRBase	NF	no factor TF: 74-75
2022-03-08	SRBase	NF	no factor TF: 73-74
2020-12-15	SRBase	NF	no factor TF: 72-73
2020-07-11	SRBase	NF	no factor TF: 71-72
2020-05-08	SRBase	NF	no factor TF: 70-71
2019-07-10	Chabot Prime	NF	no factor TF: 69-70
2018-07-10	Chabot Prime	NF	no factor TF: 68-69
2016-11-08	tsc	NF	no factor TF: 67-68
2016-01-16	johnsilver	NF	no factor TF: 66-67
2013-12-10	tsc	NF	no factor TF: 65-66
2011-09-11	sasaki3	NF	no factor TF: 64-65
2010-04-05	sasaki3	NF	no factor TF: 63-64
2010-04-05	sasaki3	NF	no factor TF: 62-63