is 2 2379149 - 1
has 716196 decimal digits
takes 0.161 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
Actual26712.489367.1642%2000000600000000.50557.6084%12.994869.6625%2.4983%
PrimeNet2590.032362.7119%100001700000.00182.4756%0.034163.6350%0.9231%
GPU722630.670865.0794%100001400000.00171.2725%0.672565.5237%0.4444%
Difference+4+11.8185+2.0848%+1990000+59860000+0.5038+6.3359%+12.3222+4.1387%+4.1387%

Known prime factors (2 factors, 97.0 bits, 0.00407554% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
2379149342597457928.35272
23 × 32
-991.527e-118.816e-71.794e-6
23791494508592524373233494792168.61194752210230911
16691 × 5676844421
2018-02-1316691567684442140.55930.29856.586

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
23791491544632333499480314182276749033096.963
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2018-09-28T16:24:47alpertronManual testing20000006000000012-
skipped known factor: 342597457
--0.505--7.608%


Trial Factoring results:
No TF results for M2379149


ECM factoring results:

Old Calculation Method

Total ECM effort:0.445 GHz-days
Estimated T-Level:0.250
DigitsB1CurvesCompleteFacMiss
20110005 / 1000.05095.099%
25500005 / 2800.01898.227%

New Calculation Method

Total ECM effort:0.445 GHz-days
Estimated T-Level:0.250
DigitsB1CompleteFacMiss
20110000.19282.505%
25500000.01898.236%
302500000.00199.888%


ECM Summary

B1B2factorcurvesGHz-days
50000500000030.267
50000500000020.178


Lucas-Lehmer results:
No L-L results for M2379149


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-12T15:23:09Oliver KruseGTX-1250FA0ACD82707__no
2017-11-25T12:03:43kkmrkkblmbrbkc4.xlarge
342597457
250FA0ACD82707__no
2018-02-15T00:36:03Oliver KruseGTX-7
342597457
450859252437323349479
250FA0ACD82707__no


P-1 factor-bounds graph:
B1 = 2000000, B2 = 60000000 (P-1 stage 2)
B1 = 2000000 (P-1 stage 1)
100
101
102
103
104
105
106
107
100
101
102
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
267
220
230
240
250
260
270
280
290
2100
Last modified: 2019-02-09T13:20:50+00:00