is 2 3928295377 - 1
has 1182534741 decimal digits
takes 985,529.289 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
Actual281124.668160.4938%----124.668160.4938%
Target292255,320.452965.2174%200000009600000000197,146.23064.2286%452,466.683566.6882%
Difference-11-255,195.7848-4.7236%-20000000-9600000000-197,146.2306-4.2286%-452,342.0153-6.1944%

Known prime factors (7 factors, 324.4 bits, 0.00000826% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
3928295377235697722631134.4563
3
2012-08-20135.868e-130.00040.0007
39282953773771163561931238.45648
24 × 3
2014-08-2816161.039e-110.00580.0118
392829537720034306422711340.866255
3 × 5 × 17
2014-08-285175.993e-110.00210.0037
39282953771165918067893611546.72814840
23 × 5 × 7 × 53
2014-08-288533.182e-90.00380.0059
39282953777059303924284091549.32789852
22 × 7 × 3209
2014-08-28732093.691e-80.06600.1186
392829537713919364707046731650.306177168
24 × 3 × 3691
2014-08-281636916.982e-80.07870.1368
3928295377227887022212594114012064.3052900584100
22 × 52 × 67 × 432923
2014-08-28674329230.00158.603416.026

120 Composite Factors:
P-1 results:
No P-1 results for M3928295377


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2021-05-30slaurnocebo-165026426864.305200.0142,002,4100.060
2021-09-22Seth_Tr108026426964.305200.0292,002,4100.060
Missing TF 69 - 70
Missing TF 70 - 71
Missing TF 71 - 72
Missing TF 72 - 73
Missing TF 73 - 74
Missing TF 74 - 75
2014-10-2327527640.866132.26386e-112,002,41063.83
2014-10-2327527634.456114.16151e-152,002,4103.989
2022-01-18ramgeisr4mg31s27527640.866131.9482,002,41063.83
2022-01-18ramgeisr4mg31s27527634.456111.9482,002,4103.989
2014-10-23276277--3.896--
2022-01-19ramgeisr4mg31s276277--3.896--
2022-01-21ramgeisr4mg31s277278--7.792--
2022-01-29ramgeisr4mg31s278279--15.58--
2022-02-06ramgeisr4mg31s27928040.8661331.172,002,41063.83
2022-02-06ramgeisr4mg31s27928038.4561231.172,002,41063.83
2022-04-14ramgeisr4mg31s280281--62.33--


ECM factoring results:
No ECM results for M3928295377


Lucas-Lehmer results:
No L-L results for M3928295377


PRP results:
No PRP results for M3928295377


P-1 factor-bounds graph:
100
101
102
100
101
102
103
104
105
106
TF factor-bounds graph:
281
280
279
278
277
276
269
268
this exponent TF target: 92
250
260
270
280
290
2100
Last modified: 2023-07-11T14:45:05+00:00