is 2 15359 - 1
has 4624 decimal digits
takes 0.000 GHz-days to do one PRP test
Has been fully factored.
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-
Cofactor is a certified prime

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actualunknown----0.00000.0000%
Target2440.000268.1818%500500000.00001.4404%0.000268.6401%
Difference-44-0.0002-68.1818%-500-500000.0000-1.4404%-0.0002-68.6401%

Known prime factors (3 factors, 15,359.0 bits, 100.00000000% known):
Remaining cofactor is a certified-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
153595326876143296379078597372478.81817341220598008916852
22 × 32 × 481700572166914357
2014-04-2394817005721669143573,996,0629,069,61916,939,522
153591267279631175575980624881195547076948626341133.219412552780511614031064809296030691109
3 × 19 × 1171 × 40637 × 125117 × 148669 × 8176913170597747
2019-04-2714866981769131705977471.124e+13153,958287,550
15359
click to show decimal representation
4,56015,146.9642019-04-27

1 Composite Factors:
P-1 results:
No P-1 results for M15359


Trial Factoring results:
No TF results for M15359


ECM factoring results:
Total ECM effort:7.934 GHz-days
Estimated T-Level:34.955
DigitsB1CompleteFacMiss
2011000315.8230.000%
255000058.6710.000%
302500008.4380.022%
3510000000.99137.124%
4030000000.09790.753%
45110000000.00899.197%


ECM Summary

B1B2factorcurvesGHz-days
5000050000001480.037
250000250000009721.208
10000001000000001,3216.569
300000030000000060.090
300000030000000020.030


Lucas-Lehmer results:
No L-L results for M15359


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-21Oliver KruseOliver-PC
532687614329637907859737
B31E7D26ED1740__no
2017-09-21Oliver KruseManual testing
532687614329637907859737
B31E7D26ED1740__no
2017-10-12kkmrkkblmbrbkManual testing
532687614329637907859737
B31E7D26ED1740__no
2019-04-28ANONYMOUSdory
532687614329637907859737
12672796311755759806248811955470769486263
PRP
2019-04-28ATH5960X
532687614329637907859737
12672796311755759806248811955470769486263
PRP


P-1 factor-bounds graph:
100
101
102
103
104
105
106
100
101
102
103
104
105
106
107
108
109
1010
1011
1012
1013
1014
1015
1016
1017
1018
TF factor-bounds graph:
this exponent TF target: 44
TF double-checked to: 67.9
ECM T-Level=34.95 ~= 100-bit
250
260
270
280
290
2100
2110
2120
2130
2140
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Last modified: 2023-10-02T12:12:48+00:00