is 2 45198931 - 1
has 13606235 decimal digits
takes 72.543 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
Actual2681.318761.7647 %----1.318761.7647 %
Target27221.158363.8889 %320000500000007.04384.0237 %28.202165.3419 %
Difference-4-19.8396-2.1242 %-320000-50000000-7.0438-4.0237 %-26.8834-3.5772 %

Known prime factors (1 factor, 86.4 bits, 0.00019121% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
451989311037789418069064694900286412786.4241148024295164264720
24 × 5 × 23 × 311 × 397519 × 5046787
2009-09-183975195046787442,7841.51461.8828

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2009-09-18lindedDB6Z5GG12786.4243.4590.000%


Trial Factoring results:
57585960616263646566676869707172
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2007-04-071997rj7v4_computers212630.022
2008-03-11tscv4_computers212680.661


ECM factoring results:
No ECM results for M45198931


Lucas-Lehmer results:
No L-L results for M45198931


PRP results:
No PRP results for M45198931


CERT results:
No CERT results for M45198931


P-1 factor-bounds graph:
104
105
106
104
105
106
107
TF factor-bounds graph:
268
263
this exponent TF target: 72
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00