158 237 147 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Composite: 1 known prime factor

Factored

Factor	Digits	Bits	Date
58343257703579771055479	23	75.6	2024-08-22 07:56:36

History

Date	User	Type	Result
2025-06-05	Greg	F	Factor: 58343257703579771055479 / TF: 75-76
2024-08-22	SRBase	F	Factor: 58343257703579771055479 / TF: 75-76*
2023-02-26	SRBase	NF	no factor from 2^74 to 2^75
2021-11-20	SRBase	NF	no factor from 2^73 to 2^74
2016-11-17	Choi4KANG	NF	no factor from 2^72 to 2^73
2016-10-10	workerthread	NF	no factor from 2^71 to 2^72
2016-10-06	John Burroughs	NF	no factor from 2^70 to 2^71
2016-09-11	La Güira	NF	no factor from 2^69 to 2^70
2016-09-11	La Güira	NF	no factor from 2^68 to 2^69
2016-05-12	Mr-Plonk	NF	no factor from 2^67 to 2^68
2015-04-25	Grant McCracken	NF	no factor from 2^66 to 2^67
2013-02-18	Richard	NF	no factor from 2^65 to 2^66
2011-01-29	dsl	NF	no factor from 2^64 to 2^65
2010-06-28	Torchwood Institute	NF	no factor from 2^63 to 2^64