90 505 357 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
21224517933807247369991	23	74.2	2017-12-13 14:49:01

History

Date	User	Type	Result
2024-05-16	James Heinrich	NF	no factor TF: 68-69
2017-12-13	C-C	F	Factor: 21224517933807247369991 / TF: 74-75
2017-12-13	C-C	NF	no factor TF: 73-74
2017-02-23	Carsten Kossendey	NF	no factor TF: 72-73
2016-02-21	Carsten Kossendey	NF	no factor TF: 71-72
2014-09-05	SMoffat	NF	no factor TF: 70-71
2014-02-25	LarryG	NF	no factor TF: 69-70
2011-05-23	Carsten Kossendey	NF	no factor TF: 68-69
2011-01-25	Carsten Kossendey	NF	no factor TF: 67-68
2010-11-25	Carsten Kossendey	NF	no factor TF: 66-67
2010-06-12	Carsten Kossendey	NF	no factor TF: 65-66
2010-03-30	Carsten Kossendey	NF	no factor TF: 64-65