is 2 15107 - 1
has 4548 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
Actual2671,966.897379.1045 %720000000029020111855985250546,402.692036.4908 %548,369.589386.7294 %
Target2440.000268.1818 %500500000.00001.4332 %0.000268.6378 %
Difference+23+1,966.8971+10.9227 %+7199999500+29020111855935250+546,402.6920+35.0576%+548,369.5892+18.0916 %

Known prime factors (5 factors, 338.2 bits, 2.23887081% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
151072084767720.99169
3 × 23
-3239.247e-121.413e-92.110e-9
15107156666187831191443.833518521837
19 × 3469 × 7867
2008-08-26346978677.757e-51.282e-62.440e-6
15107323804361641991444.8801071703057
1071703057
2008-08-26110717030570.00020.02020.0377
151071496916543098861636794494815927224935113.528495438056231833466867841006132
22 × 32 × 2927 × 6229 × 17467 × 43214300622679117
2017-08-2817467432143006226791178.498e+12813,6531,519,678
151074137350968207413844143475719885433735114.9941369348966772825128795748897824
25 × 17 × 23 × 1721 × 10758486899 × 5910923477813
2013-11-201075848689959109234778138.498e+12114.81207.86

26 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2021-08-12H Michaelson1000000100000012064.8240.00014.215%
2021-08-12H Michaelson100000001000000012064.8240.00320.765%
2021-08-12H Michaelson100010001000100012064.8240.00320.766%
2021-08-27Seth_TrManual testing400000000400000000
skipped known factor: 2084767
skipped known factor: 15666618783119
--0.13830.859%
2023-05-28JacobZGreatLakes720000000029020111855985250
skipped known factor: 2084767
skipped known factor: 15666618783119
skipped known factor: 32380436164199
--733,63276.420%


Trial Factoring results:
5758596061626364656667
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2008-08-26ANONYMOUSManual testing??
43.833
14
2008-08-26ANONYMOUSManual testing??
44.880
14


ECM factoring results:
Total ECM effort:36.363 GHz-days
Estimated T-Level:36.529
DigitsB1CompleteFacMiss
2011000455.0350.000%
2550000100.5650.000%
3025000017.5690.000%
3510000002.5267.998%
4030000000.30673.651%
45110000000.03296.810%
50440000000.00399.697%


ECM Summary

B1B2factorcurvesGHz-days
11.014
5000050000001480.034
250000250000005710.694
10000001000000007083.521
10000001000000005092.531
300000030000000089814.07
30000002066829312502.175
11000000111188879802512.32


Lucas-Lehmer results:
No L-L results for M15107


PRP results:
dateuseridcompidcofactorsres64
2017-09-21Oliver KruseOliver-PC
2084767
15666618783119
32380436164199
41373509682074138441434757198854337
14969165430988616367944948159272249
D55A83B21F23E957
2017-10-02kkmrkkblmbrbkManual testing
2084767
15666618783119
32380436164199
14969165430988616367944948159272249
41373509682074138441434757198854337
D55A83B21F23E957
2017-12-07ATHManual testing
2084767
15666618783119
32380436164199
14969165430988616367944948159272249
41373509682074138441434757198854337
D55A83B21F23E957
2020-04-17Oliver KruseManual testing
2084767
15666618783119
32380436164199
14969165430988616367944948159272249
41373509682074138441434757198854337
D95771BAB60A59B1


CERT results:
No CERT results for M15107


P-1 factor-bounds graph:
B1 = 7200000000, B2 = 29020111855985250 (P-1 stage 2)
B1 = 7200000000 (P-1 stage 1)
B1 = 400000000 (P-1 stage 1)
B1 = 10001000 (P-1 stage 1)
B1 = 10000000 (P-1 stage 1)
B1 = 1000000 (P-1 stage 1)
100
101
102
103
104
105
106
107
108
109
1010
1011
100
101
102
103
104
105
106
107
108
109
1010
1011
1012
1013
1014
1015
1016
1017
TF factor-bounds graph:
this exponent TF target: 44
TF double-checked to: 67
ECM T-Level=36.53 ~= 105-bit
250
260
270
280
290
2100
2110
2120
JSON version of this page
Last modified: 2024-02-29T14:28:04+00:00