33 254 747 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 =	385000
B2 =	10298750

Status	Date	User	Residue	Shift	Software
Bad		Johan Gradén	387E03497ACA6F__	0	Prime95,v?,(aka W?)
Verified	2011-11-08	Dubslow	387E03497ACA6F51	14851570	Windows 64-bit,Prime95,v26.6,build 3
Verified	2012-03-19	Patrik Johansson	387E03497ACA6F51	9784374	Linux 64-bit,Prime95,v26.5,build 5

History

Date	User	Type	Result
2019-12-26	-anonymous-	NF	no factor TF: 71-72
2019-12-26	-anonymous-	NF	no factor TF: 72-73
2015-01-11	Nesowa	NF	no factor TF: 70-71
2012-03-19	Patrik Johansson	C-LL	387E03497ACA6F51
2012-01-21	David Campeau	NF	no factor TF: 69-70
2011-11-08	Dubslow	C-LL	387E03497ACA6F51
2011-10-20	Dubslow	NF	no factor TF: 68-69
2002-01-02	-anonymous-	NF-PM1	B1=385000, B2=10298750
2002-01-02	-anonymous-	NF	no factor TF: 1-68
2001-08-26	Net_Force	NF	no factor TF: 1-60
2001-08-24	Net_Force	NF	no factor TF: 1-57
2001-08-24	Net_Force	NF	no factor TF: 1-59
2001-08-24	Net_Force	NF	no factor TF: 1-58
2000-12-07	Joss	NF	no factor TF: 1-56