61 529 597 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

TF

No factors below 2⁷⁵

TF target 2⁷⁴

P-1

B1 =	580000
B2 =	11600000

Status	Date	User	Residue	Shift
Unverified	2014-03-09	-Anonymous-	E60C7F9CA841E7__	37390775

Status	Date	User	Residue	Shift	Type	Base
Verified	2021-09-23	adamgm	AB7541BD309E051B	0	1	3
Verified	2021-10-03	_p95holder_	AB7541BD309E051B	16155223	1	3

History

Date	User	Type	Result
2021-10-03	_p95holder_	C-PRP	AB7541BD309E051B PRP: Verified PRP without proof (not generated)
2021-09-23	adamgm	C-PRP	AB7541BD309E051B PRP: Verified PRP without proof (not generated)
2020-12-31	Richard Thomas	NF	no factor from 2^74 to 2^75
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2014-03-09	-Anonymous-	C-LL	E60C7F9CA841E7__
2013-06-03	Jerry Hallett	NF	no factor from 2^73 to 2^74
2013-03-29	PPed72	NF-PM1	B1=580000, B2=11600000
2013-03-15	Kyle Askine	NF	no factor from 2^72 to 2^73
2013-03-15	Kyle Askine	NF	no factor from 2^71 to 2^72
2012-09-06	Clown_Royal	NF	no factor from 2^70 to 2^71
2011-11-13	GrunwalderGIMP	NF	no factor from 2^69 to 2^70
2009-07-31	SAHS Science Dept	NF	no factor from 2^68 to 2^69
2009-07-28	SAHS Science Dept	NF	no factor from 2^67 to 2^68
2009-07-25	SAHS Science Dept	NF	no factor from 2^66 to 2^67
2009-04-12	PrimeCruncher	NF	no factor from 2^65 to 2^66
2009-04-11	PrimeCruncher	NF	no factor from 2^64 to 2^65
2009-04-05	Sturle Sunde	NF	no factor from 2^63 to 2^64