84 554 993 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 =	13331250

Status	Date	User	Residue	Shift	Software
Unverified	2018-12-09	patgie	F4E572118ACDC5__	42282159	CUDALucas v2.06beta

History

Date	User	Type	Result
2018-12-09	patgie	C-LL	F4E572118ACDC5__
2017-11-21	Oliver Kruse	NF-PM1	B1=675000, B2=13331250, E=12
2017-05-10	Sid & Andy	NF	no factor TF: 75-76
2017-05-07	ktony	NF	no factor TF: 74-75
2017-02-15	-anonymous-	NF	no factor TF: 72-73
2017-02-15	-anonymous-	NF	no factor TF: 73-74
2017-02-15	-anonymous-	NF	no factor TF: 71-72
2013-11-07	Ryan Propper	NF	no factor TF: 70-71
2013-08-20	Robish	NF	no factor TF: 69-70
2013-08-19	Robish	NF	no factor TF: 68-69
2013-08-18	Robish	NF	no factor TF: 67-68
2013-08-18	Robish	NF	no factor TF: 66-67
2012-08-21	Carsten Kossendey	NF	no factor TF: 65-66
2010-12-24	Architects Cubed	NF	no factor TF: 64-65