83 844 401 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 =	665000
B2 =	12302500

Status	Date	User	Residue	Shift	Software
Unverified	2018-07-19	patgie	729F17BD655885__	70417072	Windows 64-bit,Prime95,v29.4,(aka Wg4)

History

Date	User	Type	Result
2018-07-19	patgie	C-LL	729F17BD655885__
2017-09-24	arnaud	NF-PM1	B1=665000, B2=12302500
2017-03-17	1997rj7	NF	no factor TF: 75-76
2017-02-19	Son Johan	NF	no factor TF: 74-75
2017-02-10	-anonymous-	NF	no factor TF: 73-74
2017-02-10	-anonymous-	NF	no factor TF: 71-72
2017-02-10	-anonymous-	NF	no factor TF: 72-73
2013-11-09	SMoffat	NF	no factor TF: 70-71
2013-02-20	S00030	NF	no factor TF: 69-70
2013-02-18	yourarmyboy	NF	no factor TF: 68-69
2013-02-18	SMoffat	NF	no factor TF: 67-68
2013-02-16	SMoffat	NF	no factor TF: 66-67
2012-09-13	Carsten Kossendey	NF	no factor TF: 65-66
2010-12-01	Architects Cubed	NF	no factor TF: 64-65