is 2 4000597123 - 1
has 1204299735 decimal digits
takes 1,003,668.325 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
Actual2720.239055.5556 %----0.239055.5556 %
Target292250,706.113165.2174 %200000006000000000125,796.06394.2360 %376,502.177066.6908 %
Difference-20-250,705.8741-9.6618 %-20000000-6000000000-125,796.0639-4.2360 %-376,501.9380-11.1352 %

Known prime factors (1 factor, 71.6 bits, 0.00000179% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
400059712336285724321883740704892271.620453503854628
22 × 11 × 10306905787		2020-07-0811103069057870.1730204,278381,534

P-1 results:
No P-1 results for M4000597123


Trial Factoring results:
575859606162636465666768697071727374757677787980818283848586878889909192
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2023-12-10ramgeisr4mg31s212680.015
2020-09-04slaurnocebo-16502642680.014
2024-02-29Stef421Gredoproject2682710.105
2020-07-08ViliamF3GPU271272
71.620
22
0.120


ECM factoring results:
No ECM results for M4000597123


Lucas-Lehmer results:
No L-L results for M4000597123


PRP results:
No PRP results for M4000597123


CERT results:
No CERT results for M4000597123


P-1 factor-bounds graph:
100
101
102
100
101
102
103
104
105
106
107
108
109
1010
1011
TF factor-bounds graph:
272
271
268
this exponent TF target: 92
250
260
270
280
290
2100
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Last modified: 2024-04-17T15:19:26+00:00