30 876 683 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Details

Composite: proven not-prime with Lucas-Lehmer test

No factors below 2⁷⁵

TF target 2⁷¹

P-1

B1 =	1500000
B2 =	45000000

Status	Date	User	Residue	Shift	Software
Verified	2006-07-10	EDNY	94C7335F6BA9876A	19651326	Windows,Prime95,v24 final,NT service,(aka Wc5)
Verified	2013-12-10	Dubslow	94C7335F6BA9876A	22867270	Linux 64-bit,Prime95,v27.9,build 1

History

Date	User	Type	Result
2021-10-04	TheJudger	NF	no factor TF: 74-75
2021-09-15	Sid & Andy	NF-PM1	B1=1500000, B2=45000000
2020-04-09	-anonymous-	NF	no factor TF: 73-74
2019-12-06	-anonymous-	NF	no factor TF: 72-73
2019-12-06	-anonymous-	NF	no factor TF: 71-72
2018-04-11	ramgeis	NF	no factor TF: 70-71
2013-12-10	Dubslow	C-LL	94C7335F6BA9876A
2013-03-03	ixfd64	NF	no factor TF: 69-70
2012-04-27	bcp19	NF	no factor TF: 68-69
2006-07-10	-anonymous-	C-LL	94C7335F6BA9876A
2006-03-14	-anonymous-	NF-PM1	B1=450000
2005-09-03	ebravick	NF	no factor TF: 1-68
2003-08-25	AxelFox	NF	no factor TF: 1-60
2002-03-24	Joss	NF	no factor TF: 1-57
2000-11-15	Joss	NF	no factor TF: 1-54