33 755 963 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 =	390000
B2 =	9652500

Status	Date	User	Residue	Shift	Software
Bad	2004-04-09	Nikolaos Karastathis	954EBF3BA0519320	15520540	Windows,Prime95,v23,(aka WZ1)
Verified	2015-01-13	Dubslow	D28F2ACD7E834ACE	31121310	Linux 64-bit,Prime95,v28.5,build 2
Verified	2015-01-15	owftheevil	D28F2ACD7E834ACE	20781952	Linux 64-bit,Prime95,v28.5,build 2

History

Date	User	Type	Result
2024-05-21	James Heinrich	NF	no factor TF: 68-69
2020-04-18	-anonymous-	NF	no factor TF: 73-74
2019-11-10	-anonymous-	NF	no factor TF: 72-73
2019-11-10	-anonymous-	NF	no factor TF: 71-72
2015-01-15	owftheevil	C-LL	D28F2ACD7E834ACE
2015-01-13	Dubslow	C-LL	D28F2ACD7E834ACE
2013-01-20	bcp19	NF	no factor TF: 70-71
2013-01-20	bcp19	NF	no factor TF: 69-70
2012-12-09	Carsten Kossendey	NF	no factor TF: 68-69
2004-04-09	-anonymous-	NF	no factor TF: 1-68
2004-04-09	-anonymous-	NF-PM1	B1=390000, B2=9652500
2004-04-09	-anonymous-	C-LL	954EBF3BA0519320
2004-02-07	-anonymous-	NF-PM1	B1=390000, B2=9652500
2004-02-07	-anonymous-	NF	no factor TF: 1-68