is 2 587 - 1
has 177 decimal digits
takes 0.000 GHz-days to do one PRP test
Has been fully factored.
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 PRP tests remaining
ResidueStatus
L-L-unknown--unknown-
PRPC47FC91E981CD1F1PRP-tested
Cofactor is a certified prime

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actualunknown----0.00000.0000%
Target2440.004077.2727%500500000.00000.5068%0.004077.3879%
Difference-44-0.0040-77.2727%-500-500000.0000-0.5068%-0.0040-77.3879%

Known prime factors (6 factors, 587.0 bits, 100.00000000% known):
Remaining cofactor is a certified-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
587554129619.080472
23 × 59
-8591.311e-101.589e-102.400e-10
5872926783721.4812493
32 × 277
-92777.328e-103.479e-104.176e-10
587394833307668891445.16633631457212
22 × 8407864303
-484078643030.00950.00680.0126
587732082833047449013032065.98962357992593479473
112 × 101 × 1979 × 16937 × 152231
-1693715223120,4003.583e-75.081e-7
58737282988634220396326383512581.6253175723052318602753525
52 × 6469 × 19636562388737689
-6469196365623887376891.088e+915,77129,457
587
click to show decimal representation
107353.660

26 Composite Factors:
P-1 results:
No P-1 results for M587


Trial Factoring results:
No TF results for M587


ECM factoring results:
No ECM results for M587


Lucas-Lehmer results:
No L-L results for M587


PRP results:
dateuseridcompidcofactorsres64PRP
2018-01-24Luke_Richardswork-laptopC47FC91E981CD1F1no


P-1 factor-bounds graph:
100
101
102
103
104
105
100
101
102
103
104
105
106
107
108
109
1010
1011
1012
1013
1014
1015
1016
1017
TF factor-bounds graph:
this exponent TF target: 44
TF double-checked to: 67.9
250
260
270
280
290
Last modified: 2023-09-25T11:53:03+00:00