is 2 21026741 - 1
has 6329680 decimal digits
takes 14.901 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
Actual2671.413162.6866%----1.413162.6866%1.1481%
PrimeNet2650.347061.5385%10000032000000.27635.1093%0.623366.6477%5.1093%
GPU722695.677963.7681%15000045000000.39773.7845%6.075567.5527%3.7845%
Difference-2-4.2647-1.0815%-150000-4500000-0.3977-3.7845%-4.6624-4.8661%-4.8661%

Known prime factors (2 factors, 106.7 bits, 0.00050737% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
2102674113315394005671340.27631663
31663
-1316631.291e-80.00180.0033
21026741978417064768732690872066.4072326601789523
35 × 112 × 43 × 61 × 97 × 311
2020-03-112433111.36750.00030.0005

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
2102674113028008719266819416852967137232933106.683
P-1 results:
Exponent "21026741" not found


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2020-03-11T10:19:37TJAOIManual testing26626766.407200.66530.391.356


ECM factoring results:
Exponent "21026741" not found


Lucas-Lehmer results:
Exponent "21026741" not found


PRP results:
Exponent "21026741" not found


P-1 factor-bounds graph:
100
101
102
103
100
101
102
103
104
105
TF factor-bounds graph:
267
240
250
260
270
280
290
2100
Last modified: 2020-03-11T10:19:37+00:00