is 2 1995073 - 1
has 600577 decimal digits
takes 0.131 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
Actual26714.893668.6567%----14.893668.6567%0.0000%
PrimeNet2580.019263.7931%80001400000.00142.4777%0.020764.6902%0.8971%
GPU722620.307966.1290%80001100000.00131.2360%0.309266.5477%0.4186%
Difference+5+14.5857+2.5277%-8000-110000-0.0013-1.2360%+14.5844+2.1090%+2.1090%

Known prime factors (2 factors, 113.0 bits, 0.00566190% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
19950731564756023841691547.15339215508
22 × 3 × 83 × 39373
-83393731.133e-50.00020.0004
1995073645109692823326117832065.80616167571132067
205627 × 78625721
2019-05-03205627786257213.69500.42690.7628

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
19950731009439277883961795120165550206332735112.959
P-1 results:
No P-1 results for M1995073


Trial Factoring results:
No TF results for M1995073


ECM factoring results:

Old Calculation Method

Total ECM effort:3.639 GHz-days
Estimated T-Level:2.050
DigitsB1CurvesCompleteFacMiss
201100041 / 1000.41066.228%
255000041 / 2800.14686.356%

New Calculation Method

Total ECM effort:3.639 GHz-days
Estimated T-Level:2.050
DigitsB1CompleteFacMiss
20110001.36225.606%
25500000.12388.425%
302500000.00899.243%


ECM Summary

B1B2factorcurvesGHz-days
500005000000242.029
50000500000030.254
50000675000070.676
50000684179670.680


Lucas-Lehmer results:
No L-L results for M1995073


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-05T17:10:43Oliver KruseGTX-1
156475602384169
A5FC9411617FC8__no
2017-11-13T01:00:32kkmrkkblmbrbkc4.xlarge
156475602384169
A5FC9411617FC8__no
2019-05-03T02:02:18ATHec2-PRPCF
156475602384169
64510969282332611783
C6F9A5128C866A9Ano
2019-05-07T02:52:09Luigi MorelliCS50X-C9
156475602384169
64510969282332611783
C6F9A5128C866A9Ano


P-1 factor-bounds graph:
100
101
102
103
104
105
106
100
101
102
103
104
105
106
107
108
TF factor-bounds graph:
267
240
250
260
270
280
290
2100
Last modified: 2022-05-27T20:48:28+00:00