35 242 253 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 2⁷¹

P-1

B1 =	405000
B2 =	6682500

Status	Date	User	Residue	Shift	Software
Verified	2007-03-20	Reinaldo González Falcón	7FE8CF5B15D5254E	11572955	Windows,Prime95,v24 final,(aka Wc1)
Verified	2016-01-23	Dubslow	7FE8CF5B15D5254E	2483257	Linux 64-bit,Prime95,v28.7,build 1

History

Date	User	Type	Result
2020-03-13	-anonymous-	NF	no factor TF: 73-74
2019-11-08	-anonymous-	NF	no factor TF: 71-72
2019-11-08	-anonymous-	NF	no factor TF: 72-73
2016-01-23	Dubslow	C-LL	7FE8CF5B15D5254E
2014-06-16	chalsall	NF	no factor TF: 70-71
2014-06-13	kracker	NF	no factor TF: 69-70
2013-02-09	LaurV	NF	no factor TF: 68-69
2012-03-13	Carsten Kossendey	NF	no factor TF: 67-68
2007-03-20	-anonymous-	NF-PM1	B1=405000, B2=6682500
2007-03-20	-anonymous-	C-LL	7FE8CF5B15D5254E
2006-04-14	-anonymous-	NF-PM1	B1=405000, B2=6682500
2006-01-15	TheJudger	NF	no factor TF: 1-67
2004-12-13	-anonymous-	NF	no factor TF: 1-61