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46 lines
1.3 KiB
Java
46 lines
1.3 KiB
Java
/*
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This is the java program to find out all the prime factors of a given number. Any number can be represented as a product of its prime numbers. User have to input the number and output is the list of prime factors.
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*/
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//This is sample program to find out all the prime factors of a given number
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import java.util.HashSet;
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import java.util.Scanner;
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import java.util.Set;
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public class Unique_Prime_Factors
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{
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static Set primeFactors(long number)
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{
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long copy = number, i;
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Set primeFactor = new HashSet<>();
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for (i = 2; i <= copy; i++)
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{
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if (copy % i == 0)
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{
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primeFactor.add(i);
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copy /= i;
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i--;
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}
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}
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return primeFactor;
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}
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public static void main(String args[])
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{
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Scanner input = new Scanner(System.in);
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long n;
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System.out.println("Enter the number: ");
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n = input.nextLong();
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System.out.println("The Prime Factors of " + n + " is: "
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+ primeFactors(n));
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}
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}
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/*
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Enter the number:
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35
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The Prime Factors of 35 is: [5, 7]
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Enter the number:
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1225
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The Prime Factors of 1225 is: [5, 7] |