is 2 1969801 - 1
has 592970 decimal digits
takes 0.130 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26715.084768.6567%----15.084768.6567%0.0000%
PrimeNet2580.019563.7931%80001400000.00142.4716%0.020964.6880%0.8949%
GPU722620.311966.1290%80001000000.00121.1959%0.313166.5341%0.4051%
Difference+5+14.7728+2.5277%-8000-100000-0.0012-1.1959%+14.7716+2.1226%+2.1226%

Known prime factors (3 factors, 165.5 bits, 0.00840304% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1969801330970494562311444.9128401115
5 × 181 × 9283
-18192831.693e-66.453e-59.004e-5
1969801157045157850243831753.8023986320391
10477 × 380483
2014-10-13104773804830.00120.00290.0037
19698011293097637072596413912166.80932823052609695
3 × 5 × 7351 × 297674263
2019-03-26735129767426314.5181.54692.8879

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
19698015197731356231124114632262804733098.714
1969801427977164459271681276712861045732134111.721
1969801203074722529843211728687296877103675337120.611
19698016721174134880608475414636500609781461022076585794350165.523
P-1 results:
No P-1 results for M1969801


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2014-10-13T11:51:00TJAOIManual testing253254*53.802170.0010.2810.001


ECM factoring results:

Old Calculation Method

Total ECM effort:3.459 GHz-days
Estimated T-Level:1.950
DigitsB1CurvesCompleteFacMiss
201100039 / 1000.39067.573%
255000039 / 2800.13986.976%

New Calculation Method

Total ECM effort:3.459 GHz-days
Estimated T-Level:1.950
DigitsB1CompleteFacMiss
20110001.28927.549%
25500000.11788.942%
302500000.00799.279%


ECM Summary

B1B2factorcurvesGHz-days
500005000000242.026
50000500000010.084
500006750000141.349


Lucas-Lehmer results:
No L-L results for M1969801


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-02T12:10:23alpertronManual testing
33097049456231
15704515785024383
5927CD1A9D253D__no
2017-10-20T14:15:49Oliver KruseGTX-3
33097049456231
15704515785024383
5927CD1A9D253D__no
2019-03-27T04:23:31artorollofourth
33097049456231
15704515785024383
129309763707259641391
CD478A610DFCFA28no
2019-03-27T22:25:29kkmrkkblmbrbkc5.large
33097049456231
15704515785024383
129309763707259641391
CD478A610DFCFA28no


P-1 factor-bounds graph:
101
102
103
104
105
101
102
103
104
105
106
107
108
109
TF factor-bounds graph:
267
254
240
250
260
270
280
290
2100
Last modified: 2022-03-05T04:01:12+00:00