33 787 847 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 =	350000
B2 =	4200000

Status	Date	User	Residue	Shift	Software
Verified	2004-07-13	Axel Hoff	8A55E6E338DD67A1	3708274	Windows,Prime95,v23,(aka WZ1)
Verified	2015-01-27	Dubslow	8A55E6E338DD67A1	7620734	Linux 64-bit,Prime95,v28.5,build 2

History

Date	User	Type	Result
2020-04-21	-anonymous-	NF	no factor TF: 73-74
2019-11-15	-anonymous-	NF	no factor TF: 72-73
2019-11-15	-anonymous-	NF	no factor TF: 71-72
2015-01-27	Dubslow	C-LL	8A55E6E338DD67A1
2013-06-20	GrunwalderGIMP	NF	no factor TF: 70-71
2013-06-09	Numberwang	NF	no factor TF: 69-70
2012-11-24	kracker	NF	no factor TF: 68-69
2004-07-13	-anonymous-	C-LL	8A55E6E338DD67A1
2004-06-21	-anonymous-	NF	no factor TF: 1-68
2004-06-21	-anonymous-	NF-PM1	B1=350000, B2=4200000