388 288 877 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
38718607863493750070833	23	75.0	2025-02-27 16:34:38

History

Date	User	Type	Result
2025-02-27	NStorm	F	Factor: 38718607863493750070833 / TF: 75-76
2023-11-02	SRBase	NF	no factor TF: 74-75
2022-05-13	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
2020-05-24	SRBase	NF	no factor TF: 70-71
2017-06-20	mikr	NF	no factor TF: 68-70
2017-02-06	Xolotl	NF	no factor TF: 67-68
2016-04-11	Derek	NF	no factor TF: 66-67
2014-05-04	c10ck3r	NF	no factor TF: 65-66
2011-04-20	Architects Cubed	NF	no factor TF: 64-65