56 599 733 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 2⁷³

P-1

B1 =	1000000
B2 =	20000000

Status	Date	User	Residue	Shift
Verified	2012-01-16	curtisc	726286CD1AC96EBB	48637152
Verified	2021-04-16	Dmitriy Degtiarev	726286CD1AC96EBB	3833307

History

Date	User	Type	Result
2021-04-16	Dmitriy Degtiarev	C-LL	726286CD1AC96EBB
2018-12-01	Sid & Andy	NF	no factor from 2^74 to 2^75
2018-11-02	Chuck	NF	no factor from 2^73 to 2^74
2018-05-26	Sid & Andy	NF-PM1	B1=1000000, B2=20000000, E=12
2016-02-23	Mark Rose	NF	no factor from 2^63 to 2^64
2016-01-03	-Anonymous-	NF	no factor from 2^72 to 2^73
2015-11-23	Sid & Andy	NF	no factor from 2^71 to 2^72
2012-01-16	curtisc	C-LL	726286CD1AC96EBB
2011-12-03	curtisc	NF-PM1	B1=775000
2011-11-30	shauge	NF	no factor from 2^70 to 2^71
2011-06-26	Xyzzy	NF	no factor from 2^69 to 2^70
2011-04-15	-Anonymous-	NF	no factor from 2^68 to 2^69
2009-07-20	S00030	NF	no factor from 2^67 to 2^68
2008-04-09	James Heinrich	NF	no factor from 2^66 to 2^67
2008-04-08	James Heinrich	NF	no factor from 2^65 to 2^66
2008-04-07	David Campeau	NF	no factor from 2^64 to 2^65