is 2 2908567379 - 1
has 875566026 decimal digits
takes 503,983.359 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
Actual27821.047058.9744%----21.047058.9744%
Target291172,417.211664.8352%150000007200000000102,122.49324.1243%274,539.704966.2855%
Difference-13-172,396.1647-5.8608%-15000000-7200000000-102,122.4932-4.1243%-274,518.6579-7.3111%

Known prime factors (6 factors, 238.3 bits, 0.00000819% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
290856737958171347591032.4381
1
2012-08-20111.972e-130.00030.0005
2908567379232685390331134.4384
22
2012-08-20447.944e-130.00100.0020
29085673792617710641111237.93045
32 × 5
2012-08-20996.969e-120.00230.0046
290856737970329159224231342.6771209
3 × 13 × 31
2014-10-2313313.784e-100.00350.0066
2908567379163868686132871443.8982817
32 × 313
2014-10-2393136.878e-100.00640.0081
29085673791364525300184071546.95523457
3 × 7 × 1117
2014-10-23711175.963e-90.01700.0286

57 Composite Factors:
P-1 results:
No P-1 results for M2908567379


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2021-12-19slaurpalvi2-rtx26426834.438110.0191,024,09021.61
2021-12-19slaurpalvi2-rtx26426832.438100.0191,024,09010.80
Missing TF 68 - 69
2020-02-11Karl-Heinz_HofmannALDI26927137.930120.1231,024,0900.675
2020-02-11Karl-Heinz_HofmannALDI26927132.438100.1231,024,09010.80
2022-01-27ramgeisr4mg31s27027137.930120.0821,024,0900.675
2022-01-27ramgeisr4mg31s27027132.438100.0821,024,09010.80
Missing TF 71 - 72
2022-01-29ramgeisr4mg31s27227334.438110.3291,024,09021.61
2022-01-29ramgeisr4mg31s27227337.930120.3291,024,0900.675
Missing TF 73 - 74
2022-01-31ramgeisr4mg31s274275--1.315--
2022-02-07ramgeisr4mg31s27527632.438102.6311,024,09010.80
2022-02-07ramgeisr4mg31s27527642.677132.6311,024,09021.61
2022-04-03ramgeisr4mg31s27627743.898145.2621,024,09010.80
2022-04-03ramgeisr4mg31s27627732.438105.2621,024,09010.80
2022-04-28ramgeisr4mg31s27727834.4381110.521,024,09021.61
2022-04-28ramgeisr4mg31s27727842.6771310.521,024,09021.61


ECM factoring results:
No ECM results for M2908567379


Lucas-Lehmer results:
No L-L results for M2908567379


PRP results:
No PRP results for M2908567379


P-1 factor-bounds graph:
100
101
102
100
101
102
103
104
TF factor-bounds graph:
278
277
276
275
273
271
268
this exponent TF target: 91
250
260
270
280
290
2100
Last modified: 2023-07-11T14:45:05+00:00