663 388 883 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 2⁸⁴

Factored

Factor	Digits	Bits	Date
53625697327937706752449	23	75.5	2025-03-10 12:40:20

History

Date	User	Type	Result
2025-03-10	NStorm	F	Factor: 53625697327937706752449 / TF: 75-76
2024-05-28	James Heinrich	NF	no factor TF: 68-69
2024-03-02	SRBase	NF	no factor TF: 74-75
2022-10-09	SRBase	NF	no factor TF: 73-74
2021-05-03	SRBase	NF	no factor TF: 72-73
2020-09-23	SRBase	NF	no factor TF: 71-72
2018-11-29	Niels_Mache_Nextcloud	NF	no factor TF: 70-71
2018-10-16	srow7	NF	no factor TF: 69-70
2018-02-26	Conductor	NF	no factor TF: 68-69
2017-02-08	sasaki	NF	no factor TF: 67-68
2014-04-16	sasaki	NF	no factor TF: 66-67
2013-12-22	sasaki	NF	no factor TF: 65-66
2011-10-26	lalera	NF	no factor TF: 64-65
2010-06-21	Architects Cubed	NF	no factor TF: 63-64