46 564 261 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 2⁷²

P-1

B1 =	565000
B2 =	15678750

Status	Date	User	Residue	Shift	Software
Bad	2008-12-23	ADBjester	C4FAE70EE4C5BB1B	6652121	Windows 64-bit,Prime95,v25.7,build 4
Verified	2015-11-27	ATH	5195AA0C44D11F60	36467884	Windows 64-bit,Prime95,v28.7,build 1
Verified	2016-05-31	MadPoo 🙂	5195AA0C44D11F60	32187377	Windows 64-bit,Prime95,v26,(aka We4)

History

Date	User	Type	Result
2019-10-10	Sid & Andy	NF	no factor TF: 73-74
2018-08-03	-anonymous-	NF	no factor TF: 72-73
2016-05-31	MadPoo 🙂	C-LL	5195AA0C44D11F60
2015-11-27	ATH	C-LL	5195AA0C44D11F60
2015-10-27	Architects Cubed	NF	no factor TF: 71-72
2015-10-27	Sid & Andy	NF	no factor TF: 70-71
2015-08-17	Gordon Spence	NF	no factor TF: 69-70
2014-09-01	VictordeHollander	NF	no factor TF: 68-69
2008-12-23	ADBjester	C-LL	C4FAE70EE4C5BB1B
2008-11-09	ADBjester	NF-PM1	B1=565000, B2=15678750
2008-04-24	JC_Herles	NF	no factor TF: 1-68