921 006 587 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
6242724436911847674191	22	72.4	2017-05-03 19:01:24

History

Date	User	Type	Result
2025-04-18	James Heinrich	F	Factor: 6242724436911847674191 / TF: 72-73
2024-07-20	Jarod McClintock	NF	no factor from 2^70 to 2^72
2024-06-01	James Heinrich	NF	no factor from 2^68 to 2^69
2017-05-03	Alex_soldier	F	Factor: 6242724436911847674191 / TF: 72-73*
2017-04-13	Conductor	NF	no factor from 2^71 to 2^72
2017-04-13	Conductor	NF	no factor from 2^70 to 2^71
2017-02-15	ramgeis	NF	no factor from 2^69 to 2^70
2016-10-27	Conductor	NF	no factor from 2^68 to 2^69
2016-07-23	Conductor	NF	no factor from 2^67 to 2^68
2015-09-03	Andres Aitsen	NF	no factor from 2^66 to 2^67
2013-05-24	ramgeis	NF	no factor from 2^65 to 2^66
2011-06-25	lycorn	NF	no factor from 2^64 to 2^65
2010-06-14	linded	NF	no factor from 2^63 to 2^64