85 758 269 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 =	710000
B2 =	13490000

Status	Date	User	Residue	Shift	Software
Unverified	2019-07-24	-anonymous-	C89A8BD25E004A__	71577224	Windows 64-bit,Prime95,v29.4,build 8

History

Date	User	Type	Result
2019-07-24	-anonymous-	C-LL	C89A8BD25E004A__
2018-02-08	La Güira	NF-PM1	B1=710000, B2=13490000
2017-10-08	TheJudger	NF	no factor TF: 74-75
2017-10-08	TheJudger	NF	no factor TF: 75-76
2017-05-06	-anonymous-	NF	no factor TF: 73-74
2017-03-08	Judge Hale	NF	no factor TF: 71-72
2017-03-08	Judge Hale	NF	no factor TF: 72-73
2016-07-01	-anonymous-	NF	no factor TF: 70-71
2014-11-29	PascalBieri	NF	no factor TF: 70-71
2013-03-23	symallad	NF	no factor TF: 69-70
2013-03-19	symallad	NF	no factor TF: 68-69
2013-03-14	Florimond C.	NF	no factor TF: 67-68
2013-03-14	MarekB	NF	no factor TF: 66-67
2013-03-08	MarekB	NF	no factor TF: 65-66
2010-11-28	Architects Cubed	NF	no factor TF: 64-65