81 546 989 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 2⁷⁵

P-1

B1 =	695000
B2 =	14247500

Status	Date	User	Residue	Shift
Unverified	2018-03-14	Jack The Ripper	5CEB1CF0DC20F1__	73834077

History

Date	User	Type	Result
2018-03-14	Jack The Ripper	C-LL	5CEB1CF0DC20F1__
2017-06-11	TheJudger	NF-PM1	B1=695000, B2=14247500, E=12
2016-10-08	-Anonymous-	NF	no factor from 2^74 to 2^75
2016-10-08	-Anonymous-	NF	no factor from 2^73 to 2^74
2016-10-08	-Anonymous-	NF	no factor from 2^72 to 2^73
2016-10-08	-Anonymous-	NF	no factor from 2^71 to 2^72
2013-06-13	-Anonymous-	NF	no factor from 2^70 to 2^71
2013-02-09	fennec	NF	no factor from 2^69 to 2^70
2013-02-06	S00030	NF	no factor from 2^68 to 2^69
2013-02-05	ITS	NF	no factor from 2^67 to 2^68
2013-01-30	phoenicis	NF	no factor from 2^66 to 2^67
2011-02-28	amanatto	NF	no factor from 2^65 to 2^66
2010-12-15	Architects Cubed	NF	no factor from 2^64 to 2^65