186 998 899 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 2⁷⁸

Factored

Factor	Digits	Bits	Date
38573171556376500614497	23	75.0	2025-01-20 23:03:49

History

Date	User	Type	Result
2025-01-20	NStorm	F	Factor: 38573171556376500614497 / TF: 75-76
2023-04-12	SRBase	NF	no factor TF: 74-75
2019-02-20	Ruediger Eckhard	NF	no factor TF: 73-74
2019-02-18	Johan Viljoen	NF	no factor TF: 72-73
2019-02-09	Johan Viljoen	NF	no factor TF: 71-72
2019-01-07	Johan Viljoen	NF	no factor TF: 70-71
2018-10-31	Chabot Prime	NF	no factor TF: 69-70
2017-07-10	rmaximus	NF	no factor TF: 68-69
2016-07-23	rubikvn2100	NF	no factor TF: 67-68
2015-08-18	Jan Kuipers	NF	no factor TF: 66-67
2013-05-28	Richard	NF	no factor TF: 65-66
2011-04-04	James Hintz	NF	no factor TF: 64-65
2010-07-30	Mark Grant	NF	no factor TF: 63-64