78 037 501 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
2420091310844023998852670823	28	91.0	2017-02-10 15:01:54

Status	Date	User	Residue	Shift
Verified (Factored)	2015-12-05	coolcat	15627675DF1405B7	6490640

P-1 factors

Date	Factor	B1	B2
2017-02-10	2420091310844023998852670823	655000	13100000

History

Date	User	Type	Result
2017-02-10	James Heinrich	F-PM1	Factor: 2420091310844023998852670823 / (P-1, B1=655000, B2=13100000, E=12)
2016-06-14	monst	NF	no factor from 2^74 to 2^75
2016-04-04	Mark Rose	NF	no factor from 2^64 to 2^65
2015-12-05	coolcat	C-LL	15627675DF1405B7
2014-09-28	coolcat	NF-PM1	B1=895000
2014-02-22	snme2pm1	NF	no factor from 2^73 to 2^74
2014-02-04	snme2pm1	NF	no factor from 2^72 to 2^73
2013-10-23	snme2pm1	NF	no factor from 2^71 to 2^72
2013-01-08	SMoffat	NF	no factor from 2^70 to 2^71
2011-03-07	sannerud.com	NF	no factor from 2^69 to 2^70
2011-03-04	sannerud.com	NF	no factor from 2^68 to 2^69
2011-03-01	TeraTism	NF	no factor from 2^67 to 2^68
2010-12-22	S00030	NF	no factor from 2^66 to 2^67
2010-10-21	Eugene Thorne	NF	no factor from 2^65 to 2^66