33 604 213 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
Verified		Progress Mtshali	1FF428B419D1E61D	29656886	Windows,Prime95,v22,NT service,(aka WY5)
Verified	2014-11-02	Sergey Nosov	1FF428B419D1E61D	20793202	Windows Service,Prime95,v27.9,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: 67-68
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
2014-11-02	Sergey Nosov	C-LL	1FF428B419D1E61D
2014-04-09	axn	NF	no factor TF: 70-71
2012-12-14	bcp19	NF	no factor TF: 69-70
2012-12-06	Carsten Kossendey	NF	no factor TF: 68-69