856 161 179 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
27827540890814820787943	23	74.6	2024-06-19 06:48:28

History

Date	User	Type	Result
2025-05-16	Greg	F	Factor: 27827540890814820787943 / TF: 74-75
2024-06-19	SRBase	F	Factor: 27827540890814820787943 / TF: 74-75*
2022-12-07	SRBase	NF	no factor from 2^73 to 2^74
2021-06-13	SRBase	NF	no factor from 2^72 to 2^73
2020-10-14	SRBase	NF	no factor from 2^71 to 2^72
2019-03-09	srow7	NF	no factor from 2^70 to 2^71
2016-10-03	ramgeis	NF	no factor from 2^68 to 2^70
2015-09-02	sasaki	NF	no factor from 2^67 to 2^68
2015-02-25	sasaki	NF	no factor from 2^66 to 2^67
2012-04-06	Mr-Plonk	NF	no factor from 2^65 to 2^66
2012-04-06	Mr-Plonk	NF	no factor from 2^64 to 2^65
2010-07-06	linded	NF	no factor from 2^63 to 2^64