62 471 921 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 2⁷⁴

P-1

B1 =	771000
B2 =	426687690

Status	Date	User	Residue	Shift
Verified	2013-04-03	-Anonymous-	186171124F998C82	4212001
Verified	2022-09-22	Andrey Mitrofanov	186171124F998C82	21651231

History

Date	User	Type	Result
2022-09-22	Andrey Mitrofanov	C-LL	186171124F998C82
2022-09-05	Oliver Kruse	NF-PM1	B1=771000, B2=426687690
2016-02-26	-Anonymous-	NF	no factor from 2^73 to 2^74
2016-02-23	Mark Rose	NF	no factor from 2^59 to 2^63
2013-04-03	-Anonymous-	C-LL	186171124F998C82
2013-03-08	-Anonymous-	NF-PM1	B1=710000
2013-02-20	Cow_tipping	NF	no factor from 2^72 to 2^73
2013-02-20	Cow_tipping	NF	no factor from 2^71 to 2^72
2013-02-20	Cow_tipping	NF	no factor from 2^70 to 2^71
2011-12-20	NB	NF	no factor from 2^69 to 2^70
2009-08-15	Gordon Bower	NF	no factor from 2^68 to 2^69
2009-08-11	Gordon Bower	NF	no factor from 2^67 to 2^68
2009-08-07	Sturle Sunde	NF	no factor from 2^66 to 2^67
2009-03-08	kkitzhaber	NF	no factor from 2^65 to 2^66
2009-02-17	-Anonymous-	NF	no factor from 2^64 to 2^65
2009-01-07	Derek	NF	no factor from 2^63 to 2^64