38 175 559 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 =	380000
B2 =	3040000

Status	Date	User	Residue	Shift	Software
Verified	2007-05-12	C. Cooper / S. Boone	076AE5E275145A27	10274831	Windows,Prime95,v24 final,NT service,(aka Wc5)
Verified	2016-11-25	Dubslow	076AE5E275145A27	10244432	Linux 64-bit,Prime95,v28.7,build 1

History

Date	User	Type	Result
2022-06-27	RichD0	NF	no factor TF: 72-73
2018-10-13	Architects Cubed	NF	no factor TF: 71-72
2016-11-25	Dubslow	C-LL	076AE5E275145A27
2014-12-02	monst	NF	no factor TF: 70-71
2014-10-26	HBendtz	NF	no factor TF: 69-70
2013-08-28	Le Comte	NF	no factor TF: 68-69
2007-05-12	curtisc	C-LL	076AE5E275145A27
2007-04-07	curtisc	NF-PM1	B1=380000, B2=3040000
2006-06-13	WileECoyote	NF	no factor TF: 1-68
2003-09-14	-anonymous-	NF	no factor TF: 1-59
2003-09-09	-anonymous-	NF	no factor TF: 1-60