43 746 137 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 =	510000
B2 =	13387500

Status	Date	User	Residue	Shift	Software
Bad	2009-05-12	eskifullofbeer	3BE8CE2CA0F4A48E	2213871	Windows,Prime95,v25.7,build 3
Verified	2015-08-30	MadPoo 🙂	548DDE0FDC7EC23C	29994253	Windows 64-bit,Prime95,v26,(aka We4)
Verified	2016-09-17	Mark Rose	548DDE0FDC7EC23C	33713223	Linux 64-bit,Prime95,v28.9,build 2

History

Date	User	Type	Result
2018-08-08	-anonymous-	NF	no factor TF: 72-73
2016-09-17	Mark Rose	C-LL	548DDE0FDC7EC23C
2015-08-30	MadPoo 🙂	C-LL	548DDE0FDC7EC23C
2015-08-20	Sid & Andy	NF	no factor TF: 71-72
2015-04-29	Mark Rose	NF	no factor TF: 70-71
2015-04-16	LaurV	NF	no factor TF: 69-70
2009-05-12	eskifullofbeer	C-LL	3BE8CE2CA0F4A48E
2009-04-12	eskifullofbeer	NF-PM1	B1=510000, B2=13387500
2007-09-13	binarydigits	NF	no factor TF: 1-69