is 2 4235165849 - 1
has 1274911958 decimal digits
takes 1,146,288.812 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
Actual2710.112954.9296%----0.112954.9296%
Target292236,820.514465.2174%200000009600000000212,689.82294.2593%449,510.337366.6989%
Difference-21-236,820.4015-10.2878%-20000000-9600000000-212,689.8229-4.2593%-449,510.2244-11.7693%

Known prime factors (6 factors, 328.1 bits, 0.00000775% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
4235165849338813267931134.9804
22
2012-08-20445.455e-130.00160.0032
423516584916361631521124731650.539193164
22 × 3 × 16097
2019-07-134160976.780e-80.34570.6429
4235165849510169433423611691755.5026023016
23 × 32 × 83653
2019-10-049836531.716e-61.79203.3409
4235165849846243057259210571756.2329990672
24 × 3 × 208139
2019-10-17162081392.979e-64.45648.3122
423516584937341503369237437131961.695440850544
24 × 827 × 33317
2020-01-13827333178.358e-51.01931.3306
42351658496436186493497650454572169.12575985058472
23 × 3 × 3166044103
2023-06-20831660441030.053267,697126,439

57 Composite Factors:
P-1 results:
No P-1 results for M4235165849


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2019-07-1325025150.539163.23799e-8248,4416.88623e-8
2019-10-0525525655.502175.82838e-7248,4411.23952e-6
2019-10-1725625756.232177.12357e-7248,4411.51497e-6
2020-01-13slaurpalvi2-rtx2126461.695190.001233,6400.002
Missing TF 64 - 65
Missing TF 65 - 66
Missing TF 66 - 67
Missing TF 67 - 68
2023-06-20slaurpalvi2-rtx26827169.125210.0992,325,6600.221


ECM factoring results:
No ECM results for M4235165849


Lucas-Lehmer results:
No L-L results for M4235165849


PRP results:
No PRP results for M4235165849


P-1 factor-bounds graph:
100
101
102
103
100
101
102
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
271
264
257
256
251
this exponent TF target: 92
250
260
270
280
290
2100
Last modified: 2023-07-11T14:45:05+00:00