is 2 172279571 - 1
has 51861319 decimal digits
takes 1,235.268 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
Actual2670.172558.2090%----0.172558.2090%-3.9532%
PrimeNet27422.207362.1622%7000004000000029.53885.5420%51.746167.7041%5.5420%
GPU72278355.332464.1026%11000004000000033.47094.0572%388.803368.1597%4.0572%
Difference-11-355.1599-5.8936%-1100000-40000000-33.4709-4.0572%-388.6308-9.9508%-9.9508%

Known prime factors (2 factors, 81.5 bits, 0.00004730% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
17227957186139785511033.00425
52
2007-11-1825256.678e-120.00030.0005
1722795713921496506930411548.4781138120
23 × 5 × 37 × 769
2014-04-04377692.930e-70.00080.0008

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
17227957133779686798519974589635912581.482
P-1 results:
Exponent "172279571" not found


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2014-04-04T10:46:00TJAOIManual testing??48.478157.53785e-82,5371.54793e-7


ECM factoring results:
Exponent "172279571" not found


Lucas-Lehmer results:
Exponent "172279571" not found


PRP results:
Exponent "172279571" not found


P-1 factor-bounds graph:
100
101
102
100
101
102
103
TF factor-bounds graph:
267
2
230
240
250
260
270
280
290
2100
Last modified: 2014-04-04T10:46:40+00:00