is 2 25199017 - 1
has 7585660 decimal digits
takes 21.594 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
Actual2671.179262.6866 %----1.179262.6866 %
Target2709.482564.2857 %180000275000002.07323.7366 %11.555765.6202 %
Difference-3-8.3034-1.5991 %-180000-27500000-2.0732-3.7366 %-10.3766-2.9336 %

Known prime factors (2 factors, 95.2 bits, 0.00037766% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
25199017218474973409671444.313433499
11 × 39409
-11394091.703e-70.00270.0050
2519901720341999205632571650.85340362684
22 × 3 × 1249 × 2693
2008-09-08124926938.998e-60.00160.0032

1 Composite Factors:
P-1 results:
No P-1 results for M25199017


Trial Factoring results:
5758596061626364656667686970
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2008-09-08Will EdgingtonManual testing??
50.853
16
9.99011e-6


ECM factoring results:
No ECM results for M25199017


Lucas-Lehmer results:
No L-L results for M25199017


PRP results:
No PRP results for M25199017


CERT results:
No CERT results for M25199017


P-1 factor-bounds graph:
100
101
102
103
104
100
101
102
103
104
105
TF factor-bounds graph:
this exponent TF target: 70
TF double-checked to: 67
250
260
270
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Last modified: 2024-03-13T02:15:48+00:00