33 753 283 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 =	380000
B2 =	7220000

Status	Date	User	Residue	Shift	Software
Verified	2004-04-20	Jason Greene	8A1A633184F1C4A5	870099	Windows,Prime95,v23,(aka WZ1)
Verified	2015-01-12	Dubslow	8A1A633184F1C4A5	27444488	Linux 64-bit,Prime95,v28.5,build 2

History

Date	User	Type	Result
2024-05-21	James Heinrich	NF	no factor TF: 68-69
2020-04-22	-anonymous-	NF	no factor TF: 73-74
2019-11-22	-anonymous-	NF	no factor TF: 71-72
2019-11-22	-anonymous-	NF	no factor TF: 72-73
2015-01-12	Dubslow	C-LL	8A1A633184F1C4A5
2013-06-07	kdgehman	NF	no factor TF: 70-71
2013-06-07	kdgehman	NF	no factor TF: 69-70
2012-12-09	Carsten Kossendey	NF	no factor TF: 68-69
2004-04-20	-anonymous-	C-LL	8A1A633184F1C4A5
2004-01-27	-anonymous-	NF-PM1	B1=380000, B2=7220000
2004-01-18	-anonymous-	NF	no factor TF: 1-68