950 847 479 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 2⁸⁵

Factored

Factor	Digits	Bits	Date
38815263081076131997177	23	75.0	2025-02-20 18:41:02

History

Date	User	Type	Result
2025-06-12	Greg	F	Factor: 38815263081076131997177 / TF: 75-76
2025-02-20	Dmitry Bolshakov	F	Factor: 38815263081076131997177 / TF: 75-76*
2024-06-04	mewturn	NF	no factor TF: 74-75
2022-12-19	SRBase	NF	no factor TF: 73-74
2020-11-07	lycorn	NF	no factor TF: 72-73
2020-10-17	SRBase	NF	no factor TF: 71-72
2018-11-18	Niels_Mache_Nextcloud	NF	no factor TF: 70-71
2015-05-02	ramgeis	NF	no factor TF: 68-70
2013-05-03	ramgeis	NF	no factor TF: 67-68
2013-05-03	ramgeis	NF	no factor TF: 66-67
2013-05-03	ramgeis	NF	no factor TF: 65-66
2011-04-21	linded	NF	no factor TF: 64-65
2010-06-10	linded	NF	no factor TF: 63-64