39 476 111 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 2⁷²

P-1

B1 =	455000
B2 =	11716250

Status	Date	User	Residue	Shift	Software
Verified	2007-09-13	TheJudger	5424E8D90A20822F	36618708	Linux 32-bit,Prime95,v24 final,(aka Wc2)
Verified	2017-03-02	Dubslow	5424E8D90A20822F	14543769	Linux 64-bit,Prime95,v28.7,build 1

History

Date	User	Type	Result
2020-01-31	-anonymous-	NF	no factor TF: 73-74
2019-10-12	-anonymous-	NF	no factor TF: 72-73
2019-07-16	monst	NF	no factor TF: 71-72
2017-03-02	Dubslow	C-LL	5424E8D90A20822F
2014-12-10	NickOfTime	NF	no factor TF: 70-71
2014-12-06	Andrew B	NF	no factor TF: 69-70
2007-09-13	TheJudger	NF-PM1	B1=455000, B2=11716250
2007-09-13	TheJudger	C-LL	5424E8D90A20822F
2006-10-24	-anonymous-	NF	no factor TF: 1-69
2003-09-29	-anonymous-	NF	no factor TF: 1-60
2003-09-21	-anonymous-	NF	no factor TF: 1-59
2001-02-25	Joss	NF	no factor TF: 1-56