is 2 4002079381 - 1
has 1204745939 decimal digits
takes 1,004,040.193 GHz-days to do one PRP test
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2710.119554.9296 %----0.119554.9296 %
Target292250,613.258665.2174 %200000006000000000125,796.06394.2362 %376,409.322566.6908 %
Difference-21-250,613.1391-10.2878 %-20000000-6000000000-125,796.0639-4.2362 %-376,409.2030-11.7613 %

Known prime factors (2 factors, 100.4 bits, 0.00000251% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
400207938131936593460391341.538399
3 × 7 × 19
2012-08-207197.320e-110.00280.0052
40020793815378151393824298071858.90067191963
3 × 37 × 605333
2019-12-23376053339.594e-612.01022.408

1 Composite Factors:
P-1 results:
No P-1 results for M4002079381


Trial Factoring results:
575859606162636465666768697071727374757677787980818283848586878889909192
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2019-12-23slaurpalvi2-rtx2226458.900180.001
2020-09-05slaurnocebo-16502642680.014
2022-12-12slaurpalvi2-rtx2682710.105


ECM factoring results:
No ECM results for M4002079381


Lucas-Lehmer results:
No L-L results for M4002079381


PRP results:
No PRP results for M4002079381


CERT results:
No CERT results for M4002079381


P-1 factor-bounds graph:
100
101
102
100
101
102
103
104
105
106
TF factor-bounds graph:
271
268
264
this exponent TF target: 92
250
260
270
280
290
2100
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Last modified: 2024-02-09T03:30:02+00:00