81 844 957 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
4892978189432881950273569	25	82.0	2017-07-30 15:04:29

P-1 factors

Date	Factor	B1	B2
2017-07-30	4892978189432881950273569	690000	13627500

History

Date	User	Type	Result
2017-07-30	TheJudger	F-PM1	Factor: 4892978189432881950273569 / (P-1, B1=690000, B2=13627500, E=6)
2016-12-13	1997rj7	NF	no factor from 2^74 to 2^75
2016-12-13	1997rj7	NF	no factor from 2^73 to 2^74
2016-08-17	Bdot	NF	no factor from 2^72 to 2^73
2016-08-17	Bdot	NF	no factor from 2^71 to 2^72
2011-03-03	shauge	NF	no factor from 2^70 to 2^71
2011-03-03	shauge	NF	no factor from 2^69 to 2^70
2011-03-03	shauge	NF	no factor from 2^68 to 2^69
2011-03-02	Davide Alberelli	NF	no factor from 2^67 to 2^68
2011-02-28	-Anonymous-	NF	no factor from 2^66 to 2^67
2011-02-28	firejuggler	NF	no factor from 2^65 to 2^66
2010-12-15	Architects Cubed	NF	no factor from 2^64 to 2^65