is 2 4840931 - 1
has 1457266 decimal digits
takes 0.671 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
Actual2676.138165.6716%----6.138165.6716%0.0000%
PrimeNet2610.063562.2951%200004500000.00873.2293%0.072263.5127%1.2176%
GPU722651.507164.6154%320006500000.01322.3255%1.520365.4383%0.8229%
Difference+2+4.6310+1.0563%-32000-650000-0.0132-2.3255%+4.6178+0.2334%+0.2334%

Known prime factors (2 factors, 105.3 bits, 0.00217498% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
484093155767525131032.377576
26 × 32
-991.329e-101.809e-63.681e-6
484093188885200434098323831612272.912918058948104180
22 × 3 × 5 × 17 × 137 × 4957 × 1325351
2019-06-2349571325351238.610.01550.0271

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
48409314956907648893665183170188563359332105.289
P-1 results:
No P-1 results for M4840931


Trial Factoring results:
No TF results for M4840931


ECM factoring results:

Old Calculation Method

Total ECM effort:0.209 GHz-days
Estimated T-Level:0.050
DigitsB1CurvesCompleteFacMiss
20110001 / 1000.01099.000%
25500001 / 2800.00499.643%

New Calculation Method

Total ECM effort:0.209 GHz-days
Estimated T-Level:0.050
DigitsB1CompleteFacMiss
20110000.03896.227%
25500000.00499.645%


ECM Summary

B1B2factorcurvesGHz-days
50000500000010.209


Lucas-Lehmer results:
No L-L results for M4840931


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-20T06:40:57kkmrkkblmbrbkManual testing
5576752513
38AA3AE4296646__no
2018-03-29T10:58:10Oliver KruseGTX-2
5576752513
38AA3AE4296646__no
2019-06-24T11:55:52Niels_Mache_NextcloudSuperDry-X
5576752513
8888520043409832383161
5D798038B8325D28no
2019-06-25T11:39:58kkmrkkblmbrbkc5.large
5576752513
8888520043409832383161
5D798038B8325D28no


P-1 factor-bounds graph:
100
101
102
103
104
100
101
102
103
104
105
106
107
TF factor-bounds graph:
267
230
240
250
260
270
280
290
2100
Last modified: 2019-06-25T11:39:58+00:00