com.nwawsoft.util.math

Class HighlyCompositeNumbers

java.lang.Object

com.nwawsoft.util.math.HighlyCompositeNumbers

public class HighlyCompositeNumbers
extends java.lang.Object

Supplies functions to generate an int[] of highly composite numbers and/or print them.

Constructor Summary

Constructors

Constructor and Description
HighlyCompositeNumbers()

Method Summary

Modifier and Type	Method and Description
static int[]	getHCNs(int upperBound) Returns an int[] with all highly composite numbers from 1 to upperBound.
static void	printHCN() Endless HCN print.
static void	printHCN(int upperBound) Prints all numbers between 0 and upperBound that have a higher amount of divisors than the numbers before.
static void	printHCN(int lowerBound, int upperBound) Prints all numbers that have a higher amount of divisors than the numbers before.

Methods inherited from class java.lang.Object

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

Constructor Detail

HighlyCompositeNumbers

public HighlyCompositeNumbers()

Method Detail

printHCN

public static void printHCN(int upperBound)

Prints all numbers between 0 and upperBound that have a higher amount of divisors than the numbers before.

Parameters:

upperBound - the last number to check

printHCN

public static void printHCN(int lowerBound,
                            int upperBound)

Prints all numbers that have a higher amount of divisors than the numbers before. Only checks numbers between lowerBound and upperBound. This function will only print HCNs after reaching the first real HCN in its range. Keep in mind that the first few numbers could have a smaller amount of divisors than a number lower than lowerBound and are therefore not guaranteed to be HCNs.

Parameters:

lowerBound - the number from where to start looking for HCNs

upperBound - the last number to check

printHCN

public static void printHCN()

Endless HCN print. Has to be manually interrupted.

getHCNs

public static int[] getHCNs(int upperBound)

Returns an int[] with all highly composite numbers from 1 to upperBound.

Parameters:

upperBound - the upper bound to check to.

Returns:

an int[] with size HCNAmount that contains all HCNs from 1 to upperBound.