661 111 727 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 2⁸³

Factored

Factor	Digits	Bits	Date
57781018188334398066401	23	75.6	2025-03-16 17:17:45

History

Date	User	Type	Result
2025-03-16	NStorm	F	Factor: 57781018188334398066401 / TF: 75-76
2024-05-28	James Heinrich	NF	no factor TF: 68-69
2024-03-01	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
2020-09-24	SRBase	NF	no factor TF: 71-72
2018-12-04	Niels_Mache_Nextcloud	NF	no factor TF: 70-71
2018-10-03	srow7	NF	no factor TF: 69-70
2018-02-12	Conductor	NF	no factor TF: 68-69
2017-02-01	sasaki	NF	no factor TF: 67-68
2014-03-25	sasaki	NF	no factor TF: 66-67
2011-10-18	Rob_Dee	NF	no factor TF: 65-66
2010-11-01	Rob_Dee	NF	no factor TF: 64-65
2010-05-18	Rob_Dee	NF	no factor TF: 63-64