30 889 063 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Details

Composite: proven not-prime with Lucas-Lehmer test

No factors below 2⁷⁵

TF target 2⁷¹

P-1

B1 =	355000
B2 =	9141250

Status	Date	User	Residue	Shift	Software
Verified	2006-02-01	David J. Stucki	033278C1B018775D	15560871	Windows,Prime95,v22,NT service,(aka WY5)
Verified	2013-12-12	Dubslow	033278C1B018775D	8750723	Linux 64-bit,Prime95,v27.9,build 1

History

Date	User	Type	Result
2021-10-04	TheJudger	NF	no factor TF: 74-75
2020-03-23	-anonymous-	NF	no factor TF: 73-74
2019-12-13	-anonymous-	NF	no factor TF: 72-73
2019-12-13	-anonymous-	NF	no factor TF: 71-72
2018-04-11	ramgeis	NF	no factor TF: 70-71
2013-12-12	Dubslow	C-LL	033278C1B018775D
2013-03-08	bcp19	NF	no factor TF: 69-70
2012-04-25	bcp19	NF	no factor TF: 68-69
2006-02-01	David J. Stucki	C-LL	033278C1B018775D
2005-12-24	David J. Stucki	NF-PM1	B1=355000, B2=9141250
2005-12-24	David J. Stucki	NF	no factor TF: 1-68
2005-09-22	msslab	NF	no factor TF: 1-67
2005-04-26	markr	NF	no factor TF: 1-62
2003-08-25	AxelFox	NF	no factor TF: 1-60
2002-03-24	Joss	NF	no factor TF: 1-57
2000-11-15	Joss	NF	no factor TF: 1-54