48 802 147 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 2⁷³

P-1

B1 =	765000
B2 =	765000

Status	Date	User	Residue	Shift	Software
Verified	2011-06-16	Kyle Z Schmidt	746BCC95E62D7A72	28484867	Windows 64-bit,Prime95,v26.5,build 5
Verified	2017-12-25	Max H	746BCC95E62D7A72	5340245	Windows 64-bit,Prime95,v29.3,build 1

History

Date	User	Type	Result
2024-08-16	tbusby	NF	no factor TF: 69-70
2017-12-25	Max H	C-LL	746BCC95E62D7A72
2017-09-07	-anonymous-	NF	no factor TF: 72-73
2016-02-23	Mark Rose	NF	no factor TF: 59-64
2015-11-21	-anonymous-	NF	no factor TF: 71-72
2015-10-10	Sid & Andy	NF	no factor TF: 70-71
2015-07-25	Architects Cubed	NF	no factor TF: 69-70
2011-06-16	Kyle Z Schmidt	C-LL	746BCC95E62D7A72
2010-02-06	yapst	NF-PM1	B1=765000
2008-06-13	Roman Maznichenko	NF	no factor TF: 64-65
2008-06-13	Roman Maznichenko	NF	no factor TF: 65-66
2008-06-13	Roman Maznichenko	NF	no factor TF: 67-68
2008-06-13	Roman Maznichenko	NF	no factor TF: 66-67
2008-06-13	Roman Maznichenko	NF	no factor TF: 68-69
2003-06-06	Thomas Mullen	NF	no factor TF: 1-59