33 485 143 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 =	10335000

Status	Date	User	Residue	Shift	Software
Verified	2003-07-21	Mason Guy	49A2DB756C63D20D	18773247	Linux 32-bit,Prime95,v22,(aka WY2)
Verified	2014-11-08	Dubslow	49A2DB756C63D20D	1931197	Linux 64-bit,Prime95,v28.5,build 2

History

Date	User	Type	Result
2024-05-21	James Heinrich	NF	no factor TF: 68-69
2020-04-03	-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
2014-11-08	Dubslow	C-LL	49A2DB756C63D20D
2014-01-28	Bill Staffen	NF	no factor TF: 70-71
2012-12-18	bcp19	NF	no factor TF: 69-70
2012-12-03	Carsten Kossendey	NF	no factor TF: 68-69
2003-07-21	Mason	C-LL	49A2DB756C63D20D
2003-06-17	Mason	NF-PM1	B1=390000, B2=10335000
2003-06-01	Mason	NF	no factor TF: 1-68