is 2 3975740077 - 1
has 1196817019 decimal digits
takes 997,432.198 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
Actual2710.120254.9296%----0.120254.9296%
Target292252,273.573165.2174%200000006000000000125,796.06394.2335%378,069.637066.6899%
Difference-21-252,273.4528-10.2878%-20000000-6000000000-125,796.0639-4.2335%-378,069.5167-11.7603%

Known prime factors (5 factors, 287.1 bits, 0.00000722% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
3975740077286253285544011444.7023600
24 × 32 × 52
2012-08-2025259.263e-100.00910.0185
397574007716943013912143211650.590213080
23 × 5 × 7 × 761
2019-08-0887615.030e-80.01780.0282
397574007729975489884549211651.413376980
22 × 3 × 5 × 61 × 103
2019-08-08611031.186e-70.02300.0452
397574007710330896129979365171292269.807129924189332
22 × 74 × 19 × 712007
2023-07-2224017120070.058114.93726.356
397574007717160117662523746116072270.540215810356439
215810356439
2023-07-2212158103564390.12014,277,2517,988,714

26 Composite Factors:
P-1 results:
No P-1 results for M3975740077


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2019-08-0825025150.590161.25755e-82,025,5300.034
2019-08-0825125251.413164.31159e-82,025,5300.034
2023-07-22JamesHeinrichRTX40902126850.590160.0152,025,5300.034
2023-07-22JamesHeinrichRTX40902126844.702140.0152,025,5300.034
2023-07-22JamesHeinrichRTX40902126851.413160.0152,025,5300.034
2023-07-22slaurpalvi2-rtx26827169.807220.1052,025,5300.240
2023-07-22slaurpalvi2-rtx26827170.540220.1052,025,5300.240


ECM factoring results:
No ECM results for M3975740077


Lucas-Lehmer results:
No L-L results for M3975740077


PRP results:
No PRP results for M3975740077


P-1 factor-bounds graph:
100
101
102
103
104
100
101
102
103
104
105
106
107
108
109
1010
1011
1012
TF factor-bounds graph:
271
268
252
251
this exponent TF target: 92
250
260
270
280
290
2100
JSON version of this page
Last modified: 2023-10-02T12:12:48+00:00