is 2 49757683 - 1
has 14978556 decimal digits
takes 91.153 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
Actual2692.399462.3188 %----2.399462.3188 %
Target27338.443264.3836 %320000500000008.03993.6805 %46.483165.6944 %
Difference-4-36.0438-2.0647 %-320000-50000000-8.0399-3.6805 %-44.0837-3.3756 %

Known prime factors (1 factor, 72.3 bits, 0.00014527% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
4975768357424584153963744458412272.28257704238513240
23 × 3 × 5 × 11 × 179 × 6373 × 38321
2010-02-1263733832124.7120.02160.0345

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2010-02-12James2272.2822.3970.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2008-08-26theimericav4_computers212691.201


ECM factoring results:
No ECM results for M49757683


Lucas-Lehmer results:
No L-L results for M49757683


PRP results:
No PRP results for M49757683


CERT results:
No CERT results for M49757683


P-1 factor-bounds graph:
102
103
104
102
103
104
105
TF factor-bounds graph:
269
this exponent TF target: 73
TF double-checked to: 67
250
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Last modified: 2024-03-13T02:15:48+00:00