is 2 13984981 - 1
has 4209899 decimal digits
takes 6.205 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
Actual2672.124764.1791%3000002114343007.59348.9451%9.718167.3833%
Target2698.536865.2174%90000120000000.47542.8526%9.012166.2096%
Difference-2-6.4121-1.0383%+210000+199434300+7.1181+6.0925%+0.7060+1.1737%

Known prime factors (1 factor, 39.1 bits, 0.00027923% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
139849815693285765111239.05020355
3 × 5 × 23 × 59
-23597.362e-91.606e-53.011e-5

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2022-09-15nordisweet16_30.8b14300000300000-
skipped known factor: 569328576511
--0.193--2.183%
2022-10-30nordisweet16_30.8b14300000211434300-
skipped known factor: 569328576511
--7.593--8.945%


Trial Factoring results:
No TF results for M13984981


ECM factoring results:
No ECM results for M13984981


Lucas-Lehmer results:
No L-L results for M13984981


PRP results:
dateuseridcompidcofactorsres64PRP
2022-11-30Funky Waddlemain
569328576511
3FA386DB57DB2478no


P-1 factor-bounds graph:
B1 = 300000, B2 = 211434300 (P-1 stage 2)
B1 = 300000 (P-1 stage 1)
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TF factor-bounds graph:
this exponent TF target: 69
TF double-checked to: 67.9
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Last modified: 2023-10-02T12:12:48+00:00