84 831 881 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	2019-05-03	patgie	7ACCD3BB136529__	42417737	CUDALucas v2.06beta

History

Date	User	Type	Result
2024-06-11	James Heinrich	NF	no factor TF: 68-69
2019-05-03	patgie	C-LL	7ACCD3BB136529__
2019-04-27	ATH	NF	no factor TF: 1-63
2019-04-27	ATH	NF	no factor TF: 63-64
2017-12-12	Pi_Rho	NF-PM1	B1=670000, B2=12395000
2017-06-11	TheJudger	NF	no factor TF: 75-76
2017-06-11	TheJudger	NF	no factor TF: 74-75
2017-05-05	-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
2015-08-16	monst	NF	no factor TF: 70-71
2014-03-18	SMoffat	NF	no factor TF: 69-70
2014-01-14	Carsten Kossendey	NF	no factor TF: 68-69
2013-10-19	SMoffat	NF	no factor TF: 67-68
2013-10-13	SMoffat	NF	no factor TF: 66-67
2012-08-13	Carsten Kossendey	NF	no factor TF: 65-66
2010-12-25	Architects Cubed	NF	no factor TF: 64-65