is 2 16139 - 1
has 4859 decimal digits
takes 0.000 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2671,841.125179.1045%1000000000001000343920858081801,883,513.554540.6537%1,885,354.679687.5993%
Target2440.000168.1818%500100000.00001.4621%0.000168.6470%
Difference+23+1,841.1249+10.9227%+99999999500+100034392085798180+1,883,513.5545+39.1917%+1,885,354.6794+18.9523%

Known prime factors (7 factors, 400.7 bits, 2.48304842% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1613934214681825.0281060
22 × 5 × 53
-5533.405e-102.632e-93.517e-9
16139128111383926.9333969
34 × 72
2008-08-2649491.030e-91.693e-83.446e-8
1613913443288950471340.29041648457
3 × 13882819
2008-08-263138828191.650e-50.00030.0005
1613943228440612011341.975133925400
23 × 34 × 52 × 7 × 1181
2008-08-268111812.145e-54.870e-85.697e-8
1613954991040305740411652.288170366938180
22 × 5 × 8518346909
2008-08-26585183469090.06120.16040.2996
161391528549453513824049108757232893096.9484735576719480215778885796
22 × 1183894179870053944721449
2009-05-31411838941798700539447214491.476e+122.229e+134.163e+13
1613920131136895607885083454571480505596936117.2776236798096414859992395616667856
24 × 137 × 211 × 8573 × 76367 × 20596817738124893
2017-09-1176367205968177381248938.588e+12387,804724,309

120 Composite Factors:
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-08-27Seth_TrManual testing400000000400000000-
skipped known factor: 34214681
skipped known factor: 128111383
skipped known factor: 1344328895047
skipped known factor: 4322844061201
--0.138--7.931%
2022-04-09-Anonymous-T581010000000000010003439208580818036117.2771,883,5147.69292e-63,767,02740.654%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-08-26ANONYMOUSManual testing??26.93394.75889e-100.0001.89612e-8
2008-08-26ANONYMOUSManual testing??40.290137.41979e-60.0000.000
2008-08-26ANONYMOUSManual testing??41.975133.30031e-60.0000.000
2008-08-26ANONYMOUSManual testing??52.288160.0248.04458e-60.050


ECM factoring results:
Total ECM effort:138.355 GHz-days
Estimated T-Level:41.204
DigitsB1CompleteFacMiss
20110001,185.2370.000%
2550000305.5700.000%
3025000065.2400.000%
35100000011.6390.001%
4030000001.78316.810%
45110000000.24178.594%
50440000000.02997.118%
551100000000.00399.684%


ECM Summary

B1B2factorcurvesGHz-days
10.00000e+0
500005000000680.017
250000250000004670.581
10000001000000009714.829
10000001000000004702.337
30000003000000002,00029.84
11000000156436314550031.11
1100000020240000001,00069.65


Lucas-Lehmer results:
No L-L results for M16139


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-21Oliver KrusePRP
34214681
128111383
1344328895047
4322844061201
5499104030574041
152854945351382404910875723289
201311368956078850834545714805055969
DA47490B05BF7230no
2017-09-21Oliver KruseManual testing
34214681
128111383
1344328895047
4322844061201
5499104030574041
152854945351382404910875723289
201311368956078850834545714805055969
DA47490B05BF7230no
2017-10-02kkmrkkblmbrbkManual testing
34214681
128111383
1344328895047
4322844061201
5499104030574041
152854945351382404910875723289
201311368956078850834545714805055969
DA47490B05BF72__no
2017-12-07ATHManual testing
34214681
128111383
1344328895047
4322844061201
5499104030574041
152854945351382404910875723289
201311368956078850834545714805055969
DA47490B05BF72__no
2020-04-17Oliver KruseManual testing
34214681
128111383
1344328895047
4322844061201
5499104030574041
152854945351382404910875723289
201311368956078850834545714805055969
FA95ABF3A02A85__no


P-1 factor-bounds graph:
B1 = 100000000000, B2 = 100034392085808180 (P-1 stage 2)
B1 = 100000000000 (P-1 stage 1)
B1 = 400000000 (P-1 stage 1)
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1025
TF factor-bounds graph:
2
this exponent TF target: 44
TF double-checked to: 67.7
ECM T-Level=41.2 ~= 120-bit
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Last modified: 2023-03-23T17:39:31+00:00