is 2 12718709 - 1
has 3828713 decimal digits
takes 5.195 GHz-days to do one PRP test
Last-known PrimeNet details:
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2672.336264.1791%----2.336264.1791%1.6791%
PrimeNet2640.279862.5000%5500017000000.08574.2607%0.365566.7607%4.2607%
GPU722684.686464.7059%9000022000000.12143.0983%4.807867.8041%3.0983%
Difference-1-2.3502-0.5268%-90000-2200000-0.1214-3.0983%-2.4716-3.6250%-3.6250%

Known prime factors (4 factors, 227.3 bits, 0.00178682% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
127187098468625200571239.62333292
22 × 7 × 29 × 41
-29416.945e-91.756e-53.496e-5
127187091642774386361405931857.1896458101944
23 × 3 × 7 × 38441083
2015-08-068384410830.00241.24052.3168
12718709162432330886813032412063.816638556676180
22 × 5 × 43 × 742507763
2017-05-17437425077630.245123.96044.751
127187091142878670420283644172166.6314492903605312
26 × 3 × 29 × 101 × 151 × 157 × 337
2020-06-301573372.17149.880e-50.0002

11 Composite Factors:
exponentprime factorscomposite factordigitsbits*
127187091391204056719111996645343738013096.812
127187091375578530735389622561226160473732103.440
127187099678611109515149502305456761176932106.255
12718709266839672697837122420352238974256191337121.005
127187091877491806485220954257620330905047928138123.820
12718709185640446357188450975544723758723117549740130.448
12718709225976517672075405386224712363340890911452678904149160.629
127187091589977442626443593049070677026167127973132543901750163.443
1271870915721193622655493715040600484062218056464238494433
29
52170.071
1271870930496537034828775239897638889835212972332866589474
8649721
57187.637
1271870925826374206326726979158559200970016259207108818209
4630225324029954097
69227.260
P-1 results:
Exponent "12718709" not found


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2015-06-01T11:26:00TJAOIManual testing25725857.189180.00110.850.002
2017-05-17T15:12:59TJAOIManual testing26326463.816200.12010.570.243
2020-06-30T13:24:35TJAOIManual testing26626766.631211.01010.572.056


ECM factoring results:
Exponent "12718709" not found


Lucas-Lehmer results:
Exponent "12718709" not found


PRP results:
Exponent "12718709" not found


P-1 factor-bounds graph:
100
101
102
103
100
101
102
103
104
105
106
107
108
109
TF factor-bounds graph:
267
264
258
230
240
250
260
270
280
290
2100
Last modified: 2020-06-30T13:24:35+00:00