84 580 553 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 =	670000
B2 =	12395000

Status	Date	User	Residue	Shift	Software
Unverified	2019-04-18	patgie	31203A0DD53D06__	6225517	Windows 64-bit,Prime95,v29.4,build 8

History

Date	User	Type	Result
2019-04-24	ATH	NF	no factor TF: 63-64
2019-04-24	ATH	NF	no factor TF: 1-63
2019-04-18	patgie	C-LL	31203A0DD53D06__
2017-11-19	TheJudger	NF-PM1	B1=670000, B2=12395000
2017-05-14	TheJudger	NF	no factor TF: 75-76
2017-05-14	TheJudger	NF	no factor TF: 74-75
2017-05-12	-anonymous-	NF	no factor TF: 73-74
2017-01-30	Judge Hale	NF	no factor TF: 72-73
2017-01-30	Judge Hale	NF	no factor TF: 71-72
2014-09-13	SMoffat	NF	no factor TF: 70-71
2014-05-03	Gnorfe	NF	no factor TF: 69-70
2014-04-17	-anonymous-	NF	no factor TF: 68-69
2014-04-14	Preben S	NF	no factor TF: 67-68
2014-04-12	SMoffat	NF	no factor TF: 66-67
2012-08-05	Carsten Kossendey	NF	no factor TF: 65-66
2010-12-23	Architects Cubed	NF	no factor TF: 64-65