56 511 731 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 2⁷⁴

TF target 2⁷³

P-1

B1 =	595000
B2 =	12495000

Status	Date	User	Residue	Shift
Verified	2013-03-26	Hovmand	34AFA4BCFEE8F6F0	52071258
Verified	2021-01-20	Smok_bmv	34AFA4BCFEE8F6F0	16964945

History

Date	User	Type	Result
2021-01-20	Smok_bmv	C-LL	34AFA4BCFEE8F6F0
2018-10-18	linament	NF	no factor from 2^73 to 2^74
2016-02-23	Mark Rose	NF	no factor from 2^63 to 2^64
2016-01-22	-Anonymous-	NF	no factor from 2^72 to 2^73
2013-03-26	Hovmand	C-LL	34AFA4BCFEE8F6F0
2012-10-02	Jerry Hallett	NF	no factor from 2^71 to 2^72
2012-02-21	CuBr	NF-PM1	B1=595000, B2=12495000
2011-08-23	SidP	NF	no factor from 2^70 to 2^71
2011-06-15	Xyzzy	NF	no factor from 2^69 to 2^70
2011-04-14	Paul Leyland	NF	no factor from 2^68 to 2^69
2009-11-20	Graeme Glass	NF	no factor from 2^67 to 2^68
2008-03-08	James Heinrich	NF	no factor from 2^66 to 2^67
2008-03-07	James Heinrich	NF	no factor from 2^65 to 2^66
2008-03-06	James Heinrich	NF	no factor from 2^64 to 2^65