62 578 651 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 both PRP and Lucas-Lehmer tests

TF

No factors below 2⁷⁴

TF target 2⁷⁴

P-1

B1 =	560000
B2 =	11060000

Status	Date	User	Residue	Shift
Verified	2014-06-23	Stephan Grupp	AF982C6B214B0DF1	4285255
Verified	2022-02-03	ATH	AF982C6B214B0DF1	0

Status	Date	User	Residue	Shift	Type	Base
Verified	2022-01-24	adamgm	32D2FC60950EF100	0	1	3
Verified	2022-02-04	_p95holder_	32D2FC60950EF100	46752422	1	3

History

Date	User	Type	Result
2022-02-04	_p95holder_	C-PRP	32D2FC60950EF100 PRP: Verified PRP without proof (not generated)
2022-02-03	ATH	C-LL	AF982C6B214B0DF1
2022-01-24	adamgm	C-PRP	32D2FC60950EF100 PRP: Verified PRP without proof (not generated)
2016-02-23	Mark Rose	NF	no factor from 2^59 to 2^63
2014-06-23	Stephan Grupp	C-LL	AF982C6B214B0DF1
2013-07-19	owftheevil	NF-PM1	B1=560000, B2=11060000, E=6
2013-06-30	Chuck	NF	no factor from 2^73 to 2^74
2012-08-03	ktony	NF	no factor from 2^69 to 2^73
2010-01-16	RUSSIA_PISFU	NF	no factor from 2^68 to 2^69
2010-01-15	fatih36	NF	no factor from 2^67 to 2^68
2010-01-10	steinrar	NF	no factor from 2^66 to 2^67
2010-01-07	-Anonymous-	NF	no factor from 2^65 to 2^66
2010-01-01	Sturle Sunde	NF	no factor from 2^64 to 2^65
2009-01-28	Wojciech Florek	NF	no factor from 2^63 to 2^64