59 271 133 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
20953758447629962436419176860911	32	104.0	2012-11-30 12:50:21

P-1 factors

Date	Factor	B1	B2
2012-11-30	20953758447629962436419176860911	560000	11480000

History

Date	User	Type	Result
2022-06-27	LordJulius	NF	no factor from 2^1 to 2^63
2012-11-30	Koekie	F-PM1	Factor: 20953758447629962436419176860911
2012-10-14	delta_t	NF	no factor from 2^72 to 2^73
2011-10-29	amberjr	NF	no factor from 2^71 to 2^72
2011-10-29	amberjr	NF	no factor from 2^70 to 2^71
2011-07-13	Xyzzy	NF	no factor from 2^69 to 2^70
2009-06-16	Roman Maznichenko	NF	no factor from 2^68 to 2^69
2009-01-20	mestigoit	NF	no factor from 2^67 to 2^68
2009-01-18	mestigoit	NF	no factor from 2^66 to 2^67
2009-01-17	Sturle Sunde	NF	no factor from 2^65 to 2^66
2009-01-17	Lelikoid	NF	no factor from 2^64 to 2^65
2008-06-15	monst	NF	no factor from 2^63 to 2^64