41 144 893 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 2⁷⁵

TF target 2⁷²

P-1

B1 =	1500000
B2 =	30000000

Status	Date	User	Residue	Shift	Software
Bad	2008-03-22	C. Cooper / S. Boone	B586767746578856	18576957	Windows,Prime95,v24 final,NT service,(aka Wc5)
Verified	2010-09-21	linded	98F6AD7059DB7531	31441485	Windows Service,Prime95,v25.8,build 4
Verified	2016-07-10	MadPoo 🙂	98F6AD7059DB7531	30945308	Windows 64-bit,Prime95,v26,(aka We4)

History

Date	User	Type	Result
2024-06-14	James Heinrich	NF	no factor TF: 68-69
2020-08-13	Sid & Andy	NF	no factor TF: 74-75
2020-01-17	-anonymous-	NF	no factor TF: 73-74
2019-12-12	Sid & Andy	NF-PM1	B1=1500000, B2=30000000, E=12
2019-10-11	-anonymous-	NF	no factor TF: 72-73
2016-07-10	MadPoo 🙂	C-LL	98F6AD7059DB7531
2015-08-17	Bruno Victal	NF	no factor TF: 71-72
2014-12-27	1997rj7	NF	no factor TF: 70-71
2014-12-12	Architects Cubed	NF	no factor TF: 69-70
2013-12-10	Carsten Kossendey	NF	no factor TF: 68-69
2010-09-21	linded	C-LL	98F6AD7059DB7531
2008-03-22	curtisc	C-LL	B586767746578856
2008-03-03	curtisc	NF-PM1	B1=670000
2007-02-20	smintheus	NF	no factor TF: 1-68