90 261 497 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
19902882946225105086569	23	74.1	2018-11-25 15:47:57

History

Date	User	Type	Result
2024-05-16	James Heinrich	NF	no factor TF: 68-69
2018-11-25	TheJudger	F	Factor: 19902882946225105086569 / TF: 74-75
2018-05-04	Carsten Kossendey	NF	no factor TF: 73-74
2016-10-20	Carsten Kossendey	NF	no factor TF: 72-73
2015-11-22	Carsten Kossendey	NF	no factor TF: 71-72
2014-12-02	bunddog	NF	no factor TF: 70-71
2013-11-25	Carsten Kossendey	NF	no factor TF: 69-70
2011-05-25	Carsten Kossendey	NF	no factor TF: 68-69
2010-12-16	Carsten Kossendey	NF	no factor TF: 67-68
2010-10-16	Carsten Kossendey	NF	no factor TF: 66-67
2010-07-04	Carsten Kossendey	NF	no factor TF: 65-66
2010-05-26	Carsten Kossendey	NF	no factor TF: 64-65