is 2 267902431 - 1
has 80646668 decimal digits
takes 3,199.946 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
Actual2670.110958.2090 %----0.110958.2090 %
Target280914.014065.0000 %1600000325000000332.87494.0635 %1,246.888966.4222 %
Difference-13-913.9030-6.7910 %-1600000-325000000-332.8749-4.0635 %-1,246.7780-8.2133 %

Known prime factors (1 factor, 53.7 bits, 0.00002004% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
267902431145172282032191911753.68927094245
3 × 5 × 487 × 3709
2008-01-3148737096.966e-60.01150.0172

P-1 results:
No P-1 results for M267902431


Trial Factoring results:
575859606162636465666768697071727374757677787980
No TF results for M267902431


ECM factoring results:
No ECM results for M267902431


Lucas-Lehmer results:
No L-L results for M267902431


PRP results:
No PRP results for M267902431


CERT results:
No CERT results for M267902431


P-1 factor-bounds graph:
101
102
103
101
102
103
104
TF factor-bounds graph:
this exponent TF target: 80
TF double-checked to: 67
250
260
270
280
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Last modified: 2024-03-13T02:15:48+00:00