30 638 753 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 2⁷⁴

TF target 2⁷¹

P-1

B1 =	340000
B2 =	6460000

Status	Date	User	Residue	Shift	Software
Verified	2006-01-01	David J. Stucki	AF9CA56FDB923581	2984209	Windows,Prime95,v23,(aka WZ1)
Verified	2013-10-20	Dubslow	AF9CA56FDB923581	8737720	Linux 64-bit,Prime95,v27.9,build 1

History

Date	User	Type	Result
2020-03-22	-anonymous-	NF	no factor TF: 73-74
2019-12-14	-anonymous-	NF	no factor TF: 71-72
2019-12-14	-anonymous-	NF	no factor TF: 72-73
2018-04-11	ramgeis	NF	no factor TF: 70-71
2013-10-20	Dubslow	C-LL	AF9CA56FDB923581
2013-02-27	bcp19	NF	no factor TF: 69-70
2012-02-14	megavink	NF	no factor TF: 68-69
2006-01-01	David J. Stucki	C-LL	AF9CA56FDB923581
2005-11-27	David J. Stucki	NF-PM1	B1=340000, B2=6460000
2005-09-22	-anonymous-	NF	no factor TF: 1-68
2005-04-11	1997rj7	NF	no factor TF: 1-62
2003-08-25	AxelFox	NF	no factor TF: 1-60
2000-07-03	Alex Kruppa	NF	no factor TF: 1-52