90 287 209 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 2⁷⁵

TF target 2⁷⁵

Factored

Factor	Digits	Bits	Date
19791394593381752283497	23	74.1	2018-11-25 15:47:30

History

Date	User	Type	Result
2024-05-16	James Heinrich	NF	no factor TF: 68-69
2018-11-25	TheJudger	F	Factor: 19791394593381752283497 / TF: 74-75
2018-04-05	Carsten Kossendey	NF	no factor TF: 73-74
2016-10-31	Carsten Kossendey	NF	no factor TF: 72-73
2015-11-22	Carsten Kossendey	NF	no factor TF: 71-72
2014-11-18	shauge	NF	no factor TF: 70-71
2013-11-26	Carsten Kossendey	NF	no factor TF: 69-70
2012-05-29	Carsten Kossendey	NF	no factor TF: 68-69
2011-01-23	Carsten Kossendey	NF	no factor TF: 67-68
2010-11-20	Carsten Kossendey	NF	no factor TF: 66-67
2010-09-10	Carsten Kossendey	NF	no factor TF: 65-66