is 2 45913831 - 1
has 13821441 decimal digits
takes 73.691 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
Actual2705.204362.8571 %----5.204362.8571 %
Target27220.828963.8889 %320000500000007.04384.0317 %27.872765.3448 %
Difference-2-15.6246-1.0317 %-320000-50000000-7.0438-4.0317 %-22.6683-2.4877 %

Known prime factors (1 factor, 90.1 bits, 0.00019620% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
4591383113096739714973000487036244412890.08114262303351437827620
22 × 3 × 5 × 11 × 397 × 499 × 523 × 547 × 593 × 643
2009-01-315936437,021,5130.00140.0028

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2009-01-31ANONYMOUSv4_computers2890.0813.1790.000%
2009-03-02ANONYMOUSv4_computers2890.081-0.000%


Trial Factoring results:
57585960616263646566676869707172
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2007-04-231997rj7v4_computers212630.021
2008-01-15Team Prime Ribv4_computers212680.651
2009-01-29ANONYMOUSv4_computers212703.906
2009-03-02ANONYMOUSv4_computers212702.604


ECM factoring results:
No ECM results for M45913831


Lucas-Lehmer results:
No L-L results for M45913831


PRP results:
No PRP results for M45913831


CERT results:
No CERT results for M45913831


P-1 factor-bounds graph:
101
102
103
101
102
103
TF factor-bounds graph:
270
268
263
this exponent TF target: 72
TF double-checked to: 67
250
260
270
280
290
2100
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Last modified: 2024-03-13T02:15:48+00:00