33 158 087 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 2⁷³

TF target 2⁷¹

P-1

B1 =	375000
B2 =	4781250

Status	Date	User	Residue	Shift	Software
Verified	2007-09-28	Eric Stuyvesant	D6E72B21A2F6EAD3	31935434	Windows,Prime95,v24 final,(aka Wc1)
Verified	2014-10-02	Dubslow	D6E72B21A2F6EAD3	3567985	Linux 64-bit,Prime95,v28.5,build 2

History

Date	User	Type	Result
2019-11-15	-anonymous-	NF	no factor TF: 71-72
2019-11-15	-anonymous-	NF	no factor TF: 72-73
2014-10-02	Dubslow	C-LL	D6E72B21A2F6EAD3
2013-04-22	bcp19	NF	no factor TF: 70-71
2013-04-22	bcp19	NF	no factor TF: 69-70
2012-06-30	megavink	NF	no factor TF: 68-69
2012-02-28	Carsten Kossendey	NF	no factor TF: 67-68
2007-09-28	metallurge	C-LL	D6E72B21A2F6EAD3
2007-09-13	metallurge	NF-PM1	B1=375000, B2=4781250
2006-07-25	Peter Owen	NF	no factor TF: 1-67
2005-07-17	-anonymous-	NF	no factor TF: 1-62
2005-01-10	1997rj7	NF	no factor TF: 1-61
2000-12-07	Joss	NF	no factor TF: 1-56