397 777 487 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 2⁸¹

Factored

Factor	Digits	Bits	Date
48342266070307014778009	23	75.4	2025-02-28 10:32:15

History

Date	User	Type	Result
2025-02-28	NStorm	F	Factor: 48342266070307014778009 / TF: 75-76
2023-11-12	SRBase	NF	no factor TF: 74-75
2022-05-18	SRBase	NF	no factor TF: 73-74
2021-01-31	SRBase	NF	no factor TF: 72-73
2020-08-04	SRBase	NF	no factor TF: 71-72
2020-05-25	SRBase	NF	no factor TF: 70-71
2018-06-18	mikr	NF	no factor TF: 68-70
2017-02-16	Xolotl	NF	no factor TF: 67-68
2015-10-31	Mario Tranquillini	NF	no factor TF: 66-67
2014-06-03	KayJongsma	NF	no factor TF: 65-66
2010-05-08	Architects Cubed	NF	no factor TF: 64-65