56 689 819 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 =	1500000
B2 =	30000000

Status	Date	User	Residue	Shift
Verified	2012-09-09	BSGS	F7E9D8A4EF21036B	34097447
Verified	2021-04-28	Sergey Nosov	F7E9D8A4EF21036B	33386155

History

Date	User	Type	Result
2021-04-28	Sergey Nosov	C-LL	F7E9D8A4EF21036B
2020-04-26	Sid & Andy	NF-PM1	B1=1500000, B2=30000000, E=12
2020-03-31	Sid & Andy	NF	no factor from 2^74 to 2^75
2018-11-20	ktony	NF	no factor from 2^73 to 2^74
2016-02-23	Mark Rose	NF	no factor from 2^61 to 2^63
2015-12-28	-Anonymous-	NF	no factor from 2^72 to 2^73
2012-09-09	BSGS	C-LL	F7E9D8A4EF21036B
2012-07-01	BSGS	NF-PM1	B1=550000, B2=9762500
2012-05-31	Kyle Askine	NF	no factor from 2^71 to 2^72
2011-09-01	OS1	NF	no factor from 2^70 to 2^71
2011-06-08	Paul Leyland	NF	no factor from 2^69 to 2^70
2011-04-21	-Anonymous-	NF	no factor from 2^68 to 2^69
2009-05-22	linded	NF	no factor from 2^67 to 2^68
2008-08-05	Sturle Sunde	NF	no factor from 2^66 to 2^67
2008-08-05	Sturle Sunde	NF	no factor from 2^65 to 2^66
2008-08-04	Sturle Sunde	NF	no factor from 2^64 to 2^65
2008-08-03	Sturle Sunde	NF	no factor from 2^63 to 2^64