29 406 877 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 2⁷⁰

P-1

B1 =	295000
B2 =	3097500

Status	Date	User	Residue	Shift	Software
Verified	2006-07-25	Theocharis Kampouris	FEE68A0C8CCD9938	16048565	Linux 32-bit,Prime95,v24 final,(aka Wc2)
Verified	2013-11-20	Dubslow	FEE68A0C8CCD9938	25763232	Linux 64-bit,Prime95,v27.9,build 1

History

Date	User	Type	Result
2022-08-13	Random GPUs	NF	no factor TF: 71-72
2022-08-13	Random GPUs	NF	no factor TF: 72-73
2020-12-09	mikr	NF	no factor TF: 70-71
2013-11-20	Dubslow	C-LL	FEE68A0C8CCD9938
2013-02-26	bcp19	NF	no factor TF: 69-70
2012-01-27	monst	NF	no factor TF: 68-69
2006-07-25	-anonymous-	C-LL	FEE68A0C8CCD9938
2005-05-12	-anonymous-	NF-PM1	B1=295000, B2=3097500
2005-04-26	-anonymous-	NF	no factor TF: 1-68
2005-02-02	1997rj7	NF	no factor TF: 1-62
2001-09-10	Net_Force	NF	no factor TF: 1-56