is 2 67271591 - 1
has 20250767 decimal digits
takes 170.048 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
Actual2670.441759.7015%----0.441759.7015%0.0000%
PrimeNet2703.552061.4286%280000130000003.56645.3215%7.118463.4812%2.0526%
GPU7227456.871963.5135%450000150000004.55493.9304%61.426964.9476%1.4341%
Difference-7-56.4302-3.8120%-450000-15000000-4.5549-3.9304%-60.9852-5.2461%-5.2461%

Known prime factors (2 factors, 109.8 bits, 0.00016316% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
67271591278617403012891444.663207084
22 × 3 × 17257
-4172576.352e-80.00350.0064
67271591394285794735857073112065.096293055202705
5 × 58611040541
2018-05-315586110405410.114811,70421,860

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
67271591109854884174177912583234531002387934109.759
P-1 results:
No P-1 results for M67271591


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2018-05-31T14:29:42TJAOIManual testing265266*65.096200.006349.70.013


ECM factoring results:
No ECM results for M67271591


Lucas-Lehmer results:
No L-L results for M67271591


PRP results:
No PRP results for M67271591


P-1 factor-bounds graph:
100
101
100
101
102
103
104
105
106
107
108
109
1010
1011
TF factor-bounds graph:
267
266
240
250
260
270
280
290
2100
Last modified: 2018-05-31T14:29:42+00:00