33 787 657 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 =	465000
B2 =	9067500

Status	Date	User	Residue	Shift	Software
Verified	2004-11-30	Anthony P. Rizzo	C556975028FA25EB	26400134	Windows,Prime95,v23,(aka WZ1)
Verified	2015-01-28	Dubslow	C556975028FA25EB	16312143	Linux 64-bit,Prime95,v28.5,build 2

History

Date	User	Type	Result
2020-04-21	-anonymous-	NF	no factor TF: 73-74
2019-11-09	-anonymous-	NF	no factor TF: 72-73
2019-10-13	Architects Cubed	NF-PM1	B1=465000, B2=9067500, E=12
2019-10-01	Architects Cubed	NF	no factor TF: 71-72
2015-01-28	Dubslow	C-LL	C556975028FA25EB
2014-05-02	Axelsson	NF	no factor TF: 70-71
2013-01-03	apsen	NF	no factor TF: 69-70
2013-01-03	apsen	NF	no factor TF: 68-69
2004-11-30	-anonymous-	C-LL	C556975028FA25EB
2004-02-23	BuschnicK	NF	no factor TF: 1-68
2004-02-23	BuschnicK	NF-PM1	B1=500000