58 188 971 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 =	545000
B2 =	11036250

Status	Date	User	Residue	Shift
Verified	2013-01-29	Stephan Grupp	C18A85E61EAA998E	15968973
Verified	2020-12-21	FreeBSD12	C18A85E61EAA998E	22928439

History

Date	User	Type	Result
2020-12-21	FreeBSD12	C-LL	C18A85E61EAA998E
2019-01-10	Sid & Andy	NF	no factor from 2^74 to 2^75
2018-12-28	-Anonymous-	NF	no factor from 2^73 to 2^74
2016-02-23	Mark Rose	NF	no factor from 2^61 to 2^63
2013-01-29	Stephan Grupp	C-LL	C18A85E61EAA998E
2012-10-17	PPed72	NF-PM1	B1=545000, B2=11036250, E=4
2012-09-21	Kevin Jaget	NF	no factor from 2^72 to 2^73
2012-06-02	Craig Meyers	NF	no factor from 2^71 to 2^72
2011-11-03	oodaira	NF	no factor from 2^70 to 2^71
2011-10-05	drrs	NF	no factor from 2^69 to 2^70
2011-06-28	David Campeau	NF	no factor from 2^68 to 2^69
2009-06-06	-Anonymous-	NF	no factor from 2^67 to 2^68
2008-11-21	Sturle Sunde	NF	no factor from 2^66 to 2^67
2008-11-20	KYOJI_KAMEI	NF	no factor from 2^65 to 2^66
2008-11-18	KYOJI_KAMEI	NF	no factor from 2^64 to 2^65
2008-10-28	KYOJI_KAMEI	NF	no factor from 2^63 to 2^64