72 661 583 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 =	620000
B2 =	11935000

Status	Date	User	Residue	Shift
Unverified	2015-12-21	curtisc	FA27A861994688__	6938385

Assigned

Assigned	User	Work Type	Stage	% Done	Updated	Expired
2024-03-27	-Anonymous-	LL double-check		0.00 %	2024-03-27

History

Date	User	Type	Result
2015-12-21	curtisc	C-LL	FA27A861994688__
2015-08-23	La Güira	NF-PM1	B1=620000, B2=11935000
2015-08-16	Guido Lorenzini	NF	no factor from 2^74 to 2^75
2015-08-16	Guido Lorenzini	NF	no factor from 2^73 to 2^74
2015-08-16	Guido Lorenzini	NF	no factor from 2^72 to 2^73
2015-03-12	1997rj7	NF	no factor from 2^71 to 2^72
2013-07-03	SMoffat	NF	no factor from 2^70 to 2^71
2012-11-21	Robert_SoCal	NF	no factor from 2^69 to 2^70
2010-05-29	Radek Eron	NF	no factor from 2^68 to 2^69
2010-05-25	-Anonymous-	NF	no factor from 2^67 to 2^68
2010-05-25	Geoff Wing	NF	no factor from 2^66 to 2^67
2010-05-23	Geoff Wing	NF	no factor from 2^65 to 2^66
2010-05-21	GrunwalderGIMP	NF	no factor from 2^64 to 2^65
2008-09-19	Wojciech Florek	NF	no factor to 2^64