34 804 291 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 2⁷³

TF target 2⁷¹

P-1

B1 =	415000
B2 =	11205000

Status	Date	User	Residue	Shift	Software
Verified	2009-05-16	GlennMaitz	A29A27EBE1293CE8	20429537	Windows,Prime95,v25.7,build 3
Verified	2015-10-17	Dubslow	A29A27EBE1293CE8	23095430	Linux 64-bit,Prime95,v28.7,build 1

History

Date	User	Type	Result
2022-09-27	Sid & Andy	NF	no factor TF: 72-73
2022-07-22	Architects Cubed	NF	no factor TF: 71-72
2016-02-23	Mark Rose	NF	no factor TF: 1-61
2016-02-23	Mark Rose	NF	no factor TF: 61-63
2015-10-17	Dubslow	C-LL	A29A27EBE1293CE8
2014-03-28	kracker	NF	no factor TF: 70-71
2014-03-28	kracker	NF	no factor TF: 69-70
2013-08-01	Le Comte	NF	no factor TF: 68-69
2009-05-16	GlennMaitz	C-LL	A29A27EBE1293CE8
2008-11-09	Carsten Kossendey	NF-PM1	B1=415000, B2=11205000, E=6
2008-10-16	Carsten Kossendey	NF	no factor TF: 67-68
2008-10-05	Carsten Kossendey	NF	no factor TF: 66-67
2008-10-04	Carsten Kossendey	NF	no factor TF: 65-66
2008-10-03	Carsten Kossendey	NF	no factor TF: 64-65
2008-10-03	Carsten Kossendey	NF	no factor TF: 63-64