66 635 111 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
21667552360880771427881	23	74.2	2021-09-18 14:39:46

Status	Date	User	Residue	Shift
Verified (Factored)	2014-11-21	-Anonymous-	251F20236CE5C380	593060

History

Date	User	Type	Result
2021-09-18	RobertKazan	F	Factor: 21667552360880771427881 / TF: 74-75*
2014-11-21	-Anonymous-	C-LL	251F20236CE5C380
2014-10-29	Jerry Hallett	NF	no factor from 2^73 to 2^74
2014-04-13	TheJudger	NF-PM1	B1=645000, B2=13545000, E=6
2014-04-06	LingUaan	NF	no factor from 2^72 to 2^73
2014-04-06	LingUaan	NF	no factor from 2^71 to 2^72
2012-09-19	Bold_Seeker	NF	no factor from 2^70 to 2^71
2012-02-09	dsl	NF	no factor from 2^69 to 2^70
2010-02-22	seekua	NF	no factor from 2^68 to 2^69
2010-02-20	seekua	NF	no factor from 2^67 to 2^68
2010-02-12	Per Jessen	NF	no factor from 2^66 to 2^67
2010-02-08	kevshaw	NF	no factor from 2^65 to 2^66
2010-02-01	Sturle Sunde	NF	no factor from 2^64 to 2^65
2009-06-16	1997rj7	NF	no factor to 2^64