78 491 359 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
63690977059391142154033	23	75.8	2016-06-13 17:07:17

P-1 factors

Date	Factor	B1	B2
2016-06-13	63690977059391142154033	660000	13200000

History

Date	User	Type	Result
2016-06-13	basey	F-PM1	Factor: 63690977059391142154033 / (P-1, B1=660000, B2=13200000, E=12)
2016-06-01	PDW	NF	no factor from 2^74 to 2^75
2016-06-01	PDW	NF	no factor from 2^73 to 2^74
2016-05-30	Son Johan	NF	no factor from 2^72 to 2^73
2015-07-20	RichD0	NF	no factor from 2^71 to 2^72
2014-02-25	-Anonymous-	NF	no factor from 2^70 to 2^71
2011-02-05	Lebedev_Nikolai	NF	no factor from 2^69 to 2^70
2011-01-29	Lebedev_Nikolai	NF	no factor from 2^68 to 2^69
2011-01-21	Martin Prusa	NF	no factor from 2^67 to 2^68
2011-01-13	Aaron Haviland	NF	no factor from 2^66 to 2^67
2011-01-09	gbvalor	NF	no factor from 2^65 to 2^66
2010-11-04	Fred Cirera	NF	no factor from 2^64 to 2^65