56 325 251 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 =	565000
B2 =	12288750

Status	Date	User	Residue	Shift
Verified	2013-05-27	pmjenkins	37006F76765CEAEE	5469255
Verified	2021-03-26	-Anonymous-	37006F76765CEAEE	5110193

History

Date	User	Type	Result
2021-03-26	-Anonymous-	C-LL	37006F76765CEAEE
2018-09-12	LaurV	NF	no factor from 2^73 to 2^74
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^63
2016-01-09	-Anonymous-	NF	no factor from 2^72 to 2^73
2013-05-27	pmjenkins	C-LL	37006F76765CEAEE
2012-05-07	James Heinrich	NF-PM1	B1=565000, B2=12288750, E=12
2012-01-29	TheJudger	NF	no factor from 2^71 to 2^72
2012-01-29	TheJudger	NF	no factor from 2^70 to 2^71
2011-06-04	-Anonymous-	NF	no factor from 2^69 to 2^70
2011-04-16	Xyzzy	NF	no factor from 2^68 to 2^69
2009-05-23	Charles Spalton	NF	no factor from 2^67 to 2^68
2008-07-18	Sturle Sunde	NF	no factor from 2^66 to 2^67
2008-07-17	Sturle Sunde	NF	no factor from 2^65 to 2^66
2008-07-17	Sturle Sunde	NF	no factor from 2^64 to 2^65
2008-07-17	Sturle Sunde	NF	no factor from 2^63 to 2^64