is 2 10044737 - 1
has 3023768 decimal digits
takes 2.930 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L75297EC0B1EDCEC4double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual27023.788665.7143 %15000040000000.15212.9830 %23.940866.7370 %
Target2685.933964.7059 %6500075000000.19882.5696 %6.132765.6128 %
Difference+2+17.8547+1.0084 %+85000-3500000-0.0467+0.4134%+17.8080+1.1242 %

Known prime factors (1 factor, 79.6 bits, 0.00079255% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
100447379225348713006795041175292479.61045921305420972172
22 × 35 × 89 × 389 × 1364609381
2019-02-22389136460938112,18931.44358.727

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2000-05-10ANONYMOUSv4_computers135000135000--0.0571.249%
2011-12-22bcp19acer-Q820015000040000006--0.1523.718%
2012-01-04bcp19Manual testing15000040000006--0.1523.718%


Trial Factoring results:
5758596061626364656667686970
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-08-16ANONYMOUSv4_computers212640.195
2011-09-29David CampeauManual testing2642650.372
2015-04-21ThaManual testing2652660.744
2015-11-10VictordeHollanderManual testing2662671.488
2016-06-17mikrManual testing2672682.976
2017-09-24ramgeisManual testing2682695.952
2021-01-29ViliamFManual testing269270


ECM factoring results:
Total ECM effort:1.331 GHz-days
Estimated T-Level:0.577
DigitsB1CompleteFacMiss
20110000.11589.102%
25500000.01198.938%


ECM Summary

B1B2factorcurvesGHz-days
50000500000020.887
50000500000010.444


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2000-07-25ANONYMOUSv4_computers75297EC0B1EDCEC42.930
2003-11-28ANONYMOUSv4_computers75297EC0B1EDCEC42.930


PRP results:
dateuseridcompidcofactorsres64
2019-12-21Niels_Mache_NextcloudSuperDry-X
922534871300679504117529
CE9A030594F5D659
2021-01-22Oliver KruseIOS-5
922534871300679504117529
CE9A030594F5D659


CERT results:
dateuseridcompid
2021-01-22Mario TranquilliniMT-03-LE2400


P-1 factor-bounds graph:
B1 = 150000, B2 = 4000000 (P-1 stage 2)
B1 = 150000 (P-1 stage 1)
B1 = 135000 (P-1 stage 1)
101
102
103
104
105
106
101
102
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
270
269
268
267
266
265
264
this exponent TF target: 68
TF double-checked to: 67
ECM T-Level=0.58 ~= -15-bit
250
260
270
280
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Last modified: 2024-02-09T03:30:02+00:00