85 724 543 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Details

Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime

No factors below 2⁷⁶

TF target 2⁷⁵

P-1

B1 =	675000
B2 =	12487500

Status	Date	User	Residue	Shift	Software
Unverified	2018-10-09	-anonymous-	7C5F54DDA0E6B5__	61998609	Windows 64-bit,Prime95,v29.4,build 5

History

Date	User	Type	Result
2018-10-09	-anonymous-	C-LL	7C5F54DDA0E6B5__
2018-02-04	-anonymous-	NF-PM1	B1=675000, B2=12487500
2017-10-08	TheJudger	NF	no factor TF: 74-75
2017-10-08	TheJudger	NF	no factor TF: 75-76
2017-04-19	-anonymous-	NF	no factor TF: 73-74
2017-03-10	Judge Hale	NF	no factor TF: 72-73
2017-03-10	Judge Hale	NF	no factor TF: 71-72
2014-08-18	Ryan Propper	NF	no factor TF: 70-71
2014-05-05	timc995	NF	no factor TF: 69-70
2013-09-07	SMoffat	NF	no factor TF: 68-69
2013-03-07	SMoffat	NF	no factor TF: 67-68
2013-03-06	SMoffat	NF	no factor TF: 66-67
2013-03-04	wangyun183	NF	no factor TF: 65-66
2010-11-28	Architects Cubed	NF	no factor TF: 64-65