PrimeUtil

java.lang.Object

org.drip.numerical.common.PrimeUtil

public class PrimeUtil
extends java.lang.Object

PrimeUtil implements Generic Prime Number Utility Functions.

Module = Computational Core Module
Library = Numerical Analysis Library
Project = Numerical Quadrature, Differentiation, Eigenization, Linear Algebra, and Utilities
Package = Primitives/Array Manipulate Format Display Utilities

Author:: Lakshmi Krishnamurthy

Constructor Summary

Constructors

Constructor Description

PrimeUtil()

Method Summary

Modifier and Type	Method	Description
`static boolean`	`IsPrime(int n)`	Indicate if the specified Number is a Prime Number
`static double`	`PrimeFactor(int n)`	Compute the Prime Factor for a given Integer
`static java.util.TreeMap<java.lang.Integer,java.lang.Integer>`	`PrimeFactorMap(int n)`	Retrieve the Map of Prime Factor Count for the given Number
`static int`	`UglyNumber(int n, int a, int b, int c)`	Find the n-th ugly number.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details
- PrimeUtil
  
  public PrimeUtil()
Method Details
- PrimeFactorMap
  
  public static final java.util.TreeMap<java.lang.Integer,java.lang.Integer> PrimeFactorMap(int n)
  
  Retrieve the Map of Prime Factor Count for the given Number
  
  Parameters:
  
  n - The Given Number
  
  Returns:
  
  Map of Prime Factor Count
- IsPrime
  
  public static final boolean IsPrime(int n)
  
  Indicate if the specified Number is a Prime Number
  
  Parameters:
  
  n - n
  
  Returns:
  
  The specified Number is Prime
- PrimeFactor
  
  public static final double PrimeFactor(int n) throws java.lang.Exception
  
  Compute the Prime Factor for a given Integer
  
  Parameters:
  
  n - The Integer
  
  Returns:
  
  Prime Factor for a given Integer
  
  Throws:
  
  java.lang.Exception - Thrown if the Inputs are Invalid
- UglyNumber
  
  public static final int UglyNumber(int n, int a, int b, int c) throws java.lang.Exception
  
  Find the n-th ugly number. Ugly numbers are positive integers which are divisible by a or b or c.
  
  Parameters:
  
  n - n
  
  a - a
  
  b - b
  
  c - c
  
  Returns:
  
  The n-th Ugly Number
  
  Throws:
  
  java.lang.Exception - Thrown if the Inputs are Invalid