is 2 6980167 - 1
has 2101240 decimal digits
takes 1.522 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2674.256965.6716 %600000128047689022.237411.1312 %26.494369.4928 %
Target2674.256965.6716 %4500045000000.09102.2395 %4.347966.4404 %
Difference---+555000+1275976890+22.1464+8.8917%+22.1464+3.0524 %

Known prime factors (2 factors, 56.6 bits, 0.00081104% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
698016769801671826.0575
5
-151.282e-123.851e-76.435e-7
698016715775177431030.555113
113
2008-09-0811132.099e-112.246e-63.740e-6

1 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2024-01-01Stef42Manual testing6000001280476890
skipped known factor: 69801671
skipped known factor: 1577517743
--20.6811.131%


Trial Factoring results:
5758596061626364656667
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2008-09-08Will EdgingtonManual testing??
30.555
10


ECM factoring results:
No ECM results for M6980167


Lucas-Lehmer results:
No L-L results for M6980167


PRP results:
dateuseridcompidcofactorsres64
2018-01-30Oliver KruseGTX-2
69801671
1577517743
23736A26EFCBBFC9
2019-02-18kkmrkkblmbrbkc5.large
69801671
1577517743
23736A26EFCBBFC9


CERT results:
No CERT results for M6980167


P-1 factor-bounds graph:
B1 = 600000, B2 = 1280476890 (P-1 stage 2)
B1 = 600000 (P-1 stage 1)
100
101
102
103
104
105
106
100
101
102
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
this exponent TF target: 67
TF double-checked to: 67
250
260
270
JSON version of this page
Last modified: 2024-03-13T02:15:48+00:00