33 603 403 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 =	213000
B2 =	152924310

Status	Date	User	Residue	Shift	Software
Bad	2008-01-15	Ars Technica Team Prime Rib	5308C8895097FDDC	27154380	Windows,Prime95,v24 final,(aka Wc1)
Verified	2014-10-03	richs	FC75D63236C93B61	21360395	Windows,Prime95,v26,(aka We1)
Verified	2014-12-26	Nesowa	FC75D63236C93B61	12849643	Windows 64-bit,Prime95,v28.5,build 1

History

Date	User	Type	Result
2024-11-03	tsc	NF-PM1	B1=213000, B2=152924310
2024-05-21	James Heinrich	NF	no factor TF: 68-69
2020-04-19	-anonymous-	NF	no factor TF: 73-74
2019-12-26	-anonymous-	NF	no factor TF: 71-72
2019-12-26	-anonymous-	NF	no factor TF: 72-73
2016-03-27	Mark Rose	NF	no factor TF: 66-67
2016-03-27	Mark Rose	NF	no factor TF: 64-66
2016-02-23	Mark Rose	NF	no factor TF: 1-64
2014-12-26	Nesowa	C-LL	FC75D63236C93B61
2014-10-03	richs	C-LL	FC75D63236C93B61
2014-04-09	axn	NF	no factor TF: 70-71
2012-12-26	marssystems	NF	no factor TF: 69-70
2012-12-24	Carsten Kossendey	NF	no factor TF: 68-69
2010-07-10	GrunwalderGIMP	NF	no factor TF: 67-68
2008-01-15	Team Prime Rib	C-LL	5308C8895097FDDC
2008-01-15	Team Prime Rib	C-LL	5308C8895097FDDC