is 2 4181979563 - 1
has 1258901290 decimal digits
takes 1,131,893.427 GHz-days to do one PRP test
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2710.114354.9296%----0.114354.9296%
Target292239,832.390365.2174%200000006000000000135,714.19794.2541%375,546.588266.6971%
Difference-21-239,832.2760-10.2878%-20000000-6000000000-135,714.1979-4.2541%-375,546.4739-11.7675%

Known prime factors (1 factor, 33.0 bits, 0.00000079% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
418197956383639591271032.9621
1
2012-08-20111.371e-130.00040.0008

P-1 results:
No P-1 results for M4181979563


Trial Factoring results:
No TF results for M4181979563


ECM factoring results:
No ECM results for M4181979563


Lucas-Lehmer results:
No L-L results for M4181979563


PRP results:
No PRP results for M4181979563


P-1 factor-bounds graph:
100
101
100
101
TF factor-bounds graph:
271
this exponent TF target: 92
250
260
270
280
290
2100
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Last modified: 2023-10-02T12:12:48+00:00