is 2 72685441 - 1
has 21880498 decimal digits
takes 194.333 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2670.408859.7015%----0.408859.7015%0.0000%
PrimeNet2703.287561.4286%320000140000004.13005.5364%7.417463.5640%2.1355%
GPU7227452.635963.5135%500000170000005.42344.1223%58.059365.0176%1.5041%
Difference-7-52.2271-3.8120%-500000-17000000-5.4234-4.1223%-57.6505-5.3161%-5.3161%

Known prime factors (2 factors, 76.9 bits, 0.00010575% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
726854413698235238091238.4282544
24 × 3 × 53
-16537.812e-106.984e-50.0001
726854413714226035111238.4342555
5 × 7 × 73
2008-09-117737.824e-104.108e-55.523e-5

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
726854411373608160527510754933992476.862
P-1 results:
No P-1 results for M72685441


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-09-11T15:26:00Will EdgingtonManual testing??38.434122.78615e-10399.25.72365e-10


ECM factoring results:
No ECM results for M72685441


Lucas-Lehmer results:
No L-L results for M72685441


PRP results:
No PRP results for M72685441


P-1 factor-bounds graph:
100
101
102
100
101
102
TF factor-bounds graph:
267
2
230
240
250
260
270
280
290
2100
Last modified: 2008-09-11T15:26:14+00:00