is 2 4004213141 - 1
has 1205388265 decimal digits
takes 1,004,575.510 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
Actual2710.119454.9296%----0.119454.9296%
Target292250,479.712165.2174%200000006000000000125,796.06394.2364%376,275.776066.6909%
Difference-21-250,479.5927-10.2878%-20000000-6000000000-125,796.0639-4.2364%-376,275.6566-11.7613%

Known prime factors (1 factor, 34.5 bits, 0.00000086% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
4004213141240252788471134.4843
3
2012-08-20135.756e-130.00040.0007

P-1 results:
No P-1 results for M4004213141


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2019-06-2823423534.484114.08261e-15236,5548.74389e-15
2022-12-14slaurpalvi2-rtx268271--0.105--


ECM factoring results:
No ECM results for M4004213141


Lucas-Lehmer results:
No L-L results for M4004213141


PRP results:
No PRP results for M4004213141


P-1 factor-bounds graph:
100
101
100
101
102
TF factor-bounds graph:
271
235
this exponent TF target: 92
250
260
270
280
290
2100
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Last modified: 2023-10-02T12:12:48+00:00