is 2 4215697463 - 1
has 1269051390 decimal digits
takes 1,141,019.504 GHz-days to do one PRP test
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2710.113454.9296%----0.113454.9296%
Target292237,914.168165.2174%200000009600000000212,689.82294.2574%450,603.991066.6982%
Difference-21-237,914.0547-10.2878%-20000000-9600000000-212,689.8229-4.2574%-450,603.8776-11.7687%

Known prime factors (6 factors, 289.8 bits, 0.00000688% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
421569746384313949271032.9731
1
2012-08-20111.360e-130.00040.0008
42156974631770592934471237.36521
3 × 7
2012-08-20374.560e-120.00130.0024
421569746342831486224091341.962508
22 × 127
2019-07-1341278.405e-110.00420.0049
4215697463244932022600311444.4772905
5 × 7 × 83
2019-07-137831.066e-90.00440.0056
421569746362250106488683339831962.433738313257
3 × 11 × 22373129
2020-01-1211223731290.0003478.39893.49
421569746318182549652447707986332270.623215652923532
22 × 34 × 29 × 1272 × 1423
2023-06-0216129161290.09886.329912.883

57 Composite Factors:
P-1 results:
No P-1 results for M4215697463


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2019-07-1324124241.962131.45599e-11247,4363.09816e-11
2019-07-1324424544.477145.09595e-10247,4361.08436e-9
2020-01-12slaurpalvi2-rtx2126462.433190.001232,5660.002
Missing TF 64 - 65
Missing TF 65 - 66
Missing TF 66 - 67
Missing TF 67 - 68
2023-06-02slaurpalvi2-rtx26827137.365120.0992,315,1200.222
2023-06-02slaurpalvi2-rtx26827170.623220.0992,315,1200.222
2023-06-02slaurpalvi2-rtx26827132.973100.0992,315,1200.222


ECM factoring results:
No ECM results for M4215697463


Lucas-Lehmer results:
No L-L results for M4215697463


PRP results:
No PRP results for M4215697463


P-1 factor-bounds graph:
100
101
102
103
104
105
100
101
102
103
104
105
106
107
108
TF factor-bounds graph:
271
264
245
242
this exponent TF target: 92
250
260
270
280
290
2100
Last modified: 2023-07-11T14:45:05+00:00