84 857 033 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 =	680000
B2 =	13430000

Status	Date	User	Residue	Shift	Software
Unverified	2019-06-01	patgie	83B9A4FA017873__	7409	CUDALucas v2.06beta

History

Date	User	Type	Result
2019-06-01	patgie	C-LL	83B9A4FA017873__
2019-04-27	ATH	NF	no factor TF: 1-63
2019-04-27	ATH	NF	no factor TF: 63-64
2017-12-08	Oliver Kruse	NF-PM1	B1=680000, B2=13430000, E=12
2017-06-28	wombatman	NF	no factor TF: 75-76
2017-06-09	Brian Beuning	NF	no factor TF: 74-75
2017-04-30	-anonymous-	NF	no factor TF: 73-74
2017-02-11	Judge Hale	NF	no factor TF: 72-73
2017-02-11	Judge Hale	NF	no factor TF: 71-72
2015-02-10	monst	NF	no factor TF: 70-71
2013-03-23	Per Jessen	NF	no factor TF: 69-70
2013-03-17	Per Jessen	NF	no factor TF: 68-69
2013-03-10	Charles A. Morris	NF	no factor TF: 67-68
2013-03-07	Manfred Künzler Swiss	NF	no factor TF: 66-67
2012-08-16	Carsten Kossendey	NF	no factor TF: 65-66
2010-12-22	Architects Cubed	NF	no factor TF: 64-65