is 2 5087 - 1
has 1532 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
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-
Cofactor is a certified prime

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2675,841.147580.5970%----5,841.147580.5970%
Target2440.000570.4545%500100000.00001.0243%0.000570.7572%
Difference+23+5,841.1471+10.1425%-500-100000.0000-1.0243%+5,841.1471+9.8398%

Known prime factors (4 factors, 5,087.0 bits, 100.00000000% known):
Remaining cofactor is a certified-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
508740697515.3134
22		-448.588e-133.675e-107.479e-10
50871678711720.679165
3 × 5 × 11		2009-03-055112.844e-114.894e-109.349e-10
50871140970148331236.73111214568
23 × 1401821		2009-03-05814018212.512e-67.018e-61.311e-5
5087
click to show decimal representation
1,5105,014.2772009-03-05

4 Composite Factors:
P-1 results:
No P-1 results for M5087


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2009-03-05ANONYMOUSManual testing??36.731127.12059e-70.0000.001
2009-03-05ANONYMOUSManual testing??20.67979.80717e-130.0001.40403e-9


ECM factoring results:
No ECM results for M5087


Lucas-Lehmer results:
No L-L results for M5087


PRP results:
dateuseridcompidcofactorsres64PRP
2017-11-09kkmrkkblmbrbkc4.large
40697
1678711
114097014833
PRP


P-1 factor-bounds graph:
100
101
100
101
102
103
104
105
106
107
TF factor-bounds graph:
2
this exponent TF target: 44
TF double-checked to: 67.8
250
260
270
Last modified: 2023-04-26T21:34:10+00:00