53 895 841 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 =	640000
B2 =	19000000

Status	Date	User	Residue	Shift
Verified	2014-02-03	bradmtl	475370B949E5A6B9	17825171
Verified	2020-07-16	Sergey Nosov	475370B949E5A6B9	23041570

History

Date	User	Type	Result
2020-07-16	Sergey Nosov	C-LL	475370B949E5A6B9
2019-08-13	Jon Pace	NF	no factor from 2^73 to 2^74
2016-02-05	AirSquirrels	NF	no factor from 2^72 to 2^73
2012-04-30	Tom Duell	NF	no factor from 2^71 to 2^72
2011-09-08	Xyzzy	NF	no factor from 2^70 to 2^71
2011-04-05	kdgehman	NF-PM1	B1=640000, B2=19000000, E=6
2011-04-02	kdgehman	NF	no factor from 2^69 to 2^70
2011-04-02	kdgehman	NF	no factor from 2^68 to 2^69
2009-07-18	Scout	NF	no factor from 2^67 to 2^68
2009-07-13	D Hinners	NF	no factor from 2^66 to 2^67
2009-07-07	symallad	NF	no factor from 2^65 to 2^66
2009-05-03	Sturle Sunde	NF	no factor from 2^64 to 2^65
2008-09-01	-Anonymous-	NF	no factor to 2^64