is 2 12274553 - 1
has 3695009 decimal digits
takes 4.726 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
Actual2672.420864.1791 %40000042845985013.24279.9530 %15.663567.7444 %
Target2684.856064.7059 %90000110000000.38213.0820 %5.238065.7937 %
Difference-1-2.4352-0.5268 %+310000+417459850+12.8607+6.8710%+10.4255+1.9507 %

Known prime factors (2 factors, 130.8 bits, 0.00106558% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1227455373647319826.1343
3
-137.288e-136.191e-71.136e-6
122745533207545081347626938743253331803932104.6611306583254537915530913123
173 × 541 × 1303 × 1637 × 3821 × 40801 × 41981
2022-02-0640801419811.159e+100.02280.0464

1 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2022-02-06nordisweet16_30.8b10400000400000132104.6610.2232.148%
2022-05-13nordisweet16_30.8b14400000428459850
skipped known factor: 73647319
skipped known factor: 32075450813476269387432533318039
--16.479.148%


Trial Factoring results:
575859606162636465666768
No TF results for M12274553


ECM factoring results:
No ECM results for M12274553


Lucas-Lehmer results:
No L-L results for M12274553


PRP results:
dateuseridcompidcofactorsres64
2022-02-23Poaooffice-CN2
73647319
32075450813476269387432533318039
CA10287298BC2A75


CERT results:
dateuseridcompid
2022-02-23Jon Pace19-10-Zach


P-1 factor-bounds graph:
B1 = 400000, B2 = 428459850 (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