46 878 919 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 2⁷²

P-1

B1 =	800000
B2 =	800000

Status	Date	User	Residue	Shift	Software
Verified	2011-10-31	Dubslow	1CA49151F02D4E9A	22601570	Windows 64-bit,Prime95,v26.6,build 3
Verified	2016-10-05	-anonymous-	1CA49151F02D4E9A	1814656	Windows 64-bit,Prime95,v28.7,build 1

History

Date	User	Type	Result
2017-12-11	ktony	NF	no factor TF: 72-73
2016-10-05	-anonymous-	C-LL	1CA49151F02D4E9A
2015-12-10	AirSquirrels	NF	no factor TF: 71-72
2015-12-10	AirSquirrels	NF	no factor TF: 70-71
2011-10-31	Dubslow	C-LL	1CA49151F02D4E9A
2011-10-09	Dubslow	NF	no factor TF: 68-70
2009-11-15	-anonymous-	NF-PM1	B1=800000
2008-03-03	JC_Herles	NF	no factor TF: 1-68