is 2 12963277 - 1
has 3902336 decimal digits
takes 5.295 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
Actual2672.292264.1791 %40000032134830010.59379.6793 %12.885967.6463 %
Target2684.598064.7059 %90000120000000.43763.1675 %5.035665.8238 %
Difference-1-2.3058-0.5268 %+310000+309348300+10.1561+6.5117%+7.8502+1.8225 %

Known prime factors (1 factor, 34.9 bits, 0.00026932% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
12963277323304128391134.9121247
29 × 43
-29432.242e-101.763e-53.496e-5

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2022-05-22nordisweet16_30.8b14400000400000
skipped known factor: 32330412839
--0.2372.165%
2022-05-24nordisweet16_30.8b14400000321348300
skipped known factor: 32330412839
--12.428.889%


Trial Factoring results:
575859606162636465666768
No TF results for M12963277


ECM factoring results:
No ECM results for M12963277


Lucas-Lehmer results:
No L-L results for M12963277


PRP results:
dateuseridcompidcofactorsres64
2022-05-28XZT800G2Mini9
32330412839
465AF4BF59DA7411


CERT results:
dateuseridcompid
2022-05-28Devin CampbellDB19-01


P-1 factor-bounds graph:
B1 = 400000, B2 = 321348300 (P-1 stage 2)
B1 = 400000 (P-1 stage 1)
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TF factor-bounds graph:
this exponent TF target: 68
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00