52 046 473 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite: proven not-prime with Lucas-Lehmer test

TF

No factors below 2⁷⁴

TF target 2⁷³

P-1

B1 =	840000
B2 =	840000

Status	Date	User	Residue	Shift
Verified	2011-10-28	curtisc	ECFD8E1180E09172	4035155
Verified	2020-06-13	soldcake	ECFD8E1180E09172	34949642

History

Date	User	Type	Result
2020-06-13	soldcake	C-LL	ECFD8E1180E09172
2019-06-05	Jon Pace	NF	no factor from 2^73 to 2^74
2016-01-17	AirSquirrels	NF	no factor from 2^72 to 2^73
2015-06-12	el grocco	NF	no factor from 2^71 to 2^72
2015-06-12	el grocco	NF	no factor from 2^70 to 2^71
2014-11-16	Nesowa	NF	no factor from 2^69 to 2^70
2011-10-28	curtisc	C-LL	ECFD8E1180E09172
2011-09-21	curtisc	NF-PM1	B1=840000
2010-03-27	symallad	NF	no factor from 2^68 to 2^69
2009-05-12	Scout	NF	no factor from 2^67 to 2^68
2009-01-11	Warped	NF	no factor from 2^66 to 2^67
2008-12-17	-Anonymous-	NF	no factor from 2^65 to 2^66
2008-12-04	-Anonymous-	NF	no factor from 2^64 to 2^65
2008-10-15	Derek	NF	no factor to 2^64