is 2 4248866189 - 1
has 1279036171 decimal digits
takes 1,149,996.942 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
Actual2710.112554.9296%----0.112554.9296%
Target292236,056.893865.2174%200000006000000000135,714.19794.2606%371,771.091766.6993%
Difference-21-236,056.7813-10.2878%-20000000-6000000000-135,714.1979-4.2606%-371,770.9792-11.7698%

Known prime factors (1 factor, 68.8 bits, 0.00000162% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
42488661895161725451238677577292168.80660742386576
24 × 32 × 149 × 181 × 15641
2014-09-14181156410.02730.40160.6246

P-1 results:
No P-1 results for M4248866189


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2023-07-03slaurpalvi2-rtx26827168.806210.0982,333,0700.220


ECM factoring results:
No ECM results for M4248866189


Lucas-Lehmer results:
No L-L results for M4248866189


PRP results:
No PRP results for M4248866189


P-1 factor-bounds graph:
101
102
103
101
102
103
104
105
TF factor-bounds graph:
271
this exponent TF target: 92
250
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Last modified: 2023-10-02T12:12:48+00:00