62 287 193 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 2⁷⁴

P-1

B1 =	585000
B2 =	10822500

Status	Date	User	Residue	Shift	Software
Verified	2014-05-09	Kyle Z Schmidt	CABFEAB36EA116DC	17056283	Windows 64-bit,Prime95,v27.9,build 1
Verified	2022-01-10	Hinesp	CABFEAB36EA116DC	38254240	Windows,Prime95,v27.7,build 2

History

Date	User	Type	Result
2024-05-25	Chuck	NF	no factor TF: 70-71
2022-01-10	Hinesp	C-LL	CABFEAB36EA116DC
2016-02-23	Mark Rose	NF	no factor TF: 59-63
2014-05-09	Kyle Z Schmidt	C-LL	CABFEAB36EA116DC
2013-07-21	Bdot	NF	no factor TF: 73-74
2013-06-01	S485122	NF-PM1	B1=585000, B2=10822500
2013-03-14	Kevin Jaget	NF	no factor TF: 72-73
2013-03-06	davidb_KS	NF	no factor TF: 71-72
2013-02-19	Carsten Kossendey	NF	no factor TF: 70-71
2011-11-30	ANONYMOUS	NF	no factor TF: 69-70
2009-10-13	David Barley	NF	no factor TF: 68-69
2009-10-09	spencerswinton	NF	no factor TF: 67-68
2009-10-02	spencerswinton	NF	no factor TF: 66-67
2009-09-25	HighPriceRanch	NF	no factor TF: 65-66
2009-09-24	-anonymous-	NF	no factor TF: 64-65
2008-12-20	Derek	NF	no factor TF: 63-64
2003-07-06	Gordon Spence	NF	no factor TF: 1-59
2003-06-30	Gordon Spence	NF	no factor TF: 1-59