Write a C program to print the prime factors of a number

Write a program to print the prime factors of a number. In this C Program example, we are going to create a C program to find the prime factor of the number.

What is a Prime Factor?

Prime factors are factors of a number that is prime.

Example: 3 and 5 are prime factors of 15.

Algorithm of Prime Factor

Start with including library and declaring variables,
Performing an operation to get prime factor,
In the end, print all of them with the appropriate message.

C Program to find Prime Factor of the Number

//factor of a number
#include<stdio.h>
void main(){
int x,i;
printf("enter the number:");
scanf("%d",&x);
for(i=2;x>1;i++){
while(x%i==0){
printf("%d ",i);
x=x/i;
}
}
}

Explanation of the Source Code

On-Line no:1 commenting out the topic
On-Line no:2 including library to take input and to give output
On-Line no:3 initializing main method with void as its return type
On-Line no:4 declaring the variables with their datatypes
On-Line no:5 printing the command to the user for getting the input
On-Line no:6 using the scanf method to take input
On-Line no:7 now comes to the logic part to iterate the condition again and again the loop starts with 2 and runs until the condition given became false with increment each time
On-Line no:8 using the while loop to check the condition again and again until it became false
On-Line no:9 printing the prime factor we get from the logic
On-Line no:10 updating the user given value for iteration again
In the end, we close the scopes of the various method and functions we had opened earlier

Output

In this way, we learned how to create a program in C to find the prime factor of the number.