83 996 753 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 =	13232500

Status	Date	User	Residue	Shift	Software
Unverified	2019-02-22	patgie	1E88EF25970056__	4225	CUDALucas v2.06beta

History

Date	User	Type	Result
2019-02-22	patgie	C-LL	1E88EF25970056__
2019-02-04	ATH	NF	no factor TF: 63-64
2019-02-04	ATH	NF	no factor TF: 1-63
2017-10-22	TheJudger	NF-PM1	B1=670000, B2=13232500, E=12
2017-03-26	TheJudger	NF	no factor TF: 75-76
2017-02-05	Brian Beuning	NF	no factor TF: 74-75
2016-09-12	Gordon Bower	NF	no factor TF: 73-74
2016-09-12	Gordon Bower	NF	no factor TF: 72-73
2016-09-12	Gordon Bower	NF	no factor TF: 71-72
2014-08-08	Ryan Propper	NF	no factor TF: 70-71
2013-08-20	processinfo	NF	no factor TF: 69-70
2013-08-19	processinfo	NF	no factor TF: 68-69
2013-06-17	-anonymous-	NF	no factor TF: 67-68
2013-02-18	SMoffat	NF	no factor TF: 66-67
2012-08-13	Carsten Kossendey	NF	no factor TF: 65-66
2010-12-22	Architects Cubed	NF	no factor TF: 64-65