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program to find all factors of a number

program to find all factors of a number

Write a C program to input a number from user and find all factors of the given number using for loop. How to find factors of a number in C program.

What is factor of a number?

Factor of any number is a whole number which exactly divides the number into a whole number without leaving any remainder. For example: 2 is a factor of 6 because 2 divides 6 exactly leaving no remainder.
Logic to find all factors of a number

    Input number from user. Store it in some variable say j.
    Run a loop from 1 to j, increment 1 in each iteration. The loop structure should look like for(x=1; x<=j; x++).
    For each iteration inside loop check current counter loop variable x is a factor of j or not. To check factor we check divisibility of number by performing modulo division i.e. if(j % x == 0) then x is a factor of j.

    If x is a factor of j then print the value of x.

#include <stdio.h>

int main()
{
    int x, j;

    /* Input number from user */
    printf("Enter any number to find its factor: ");
    scanf("%d", &j);

    printf("All factors of %d are: \n", j);

    /* Iterate from 1 to j */
    for(x=1; x<=j; x++)
    {
        /* 
         * If j is exactly divisible by x
         * Then x is a factor of j
         */
        if(j % x == 0)
        {
            printf("%d, ",x);
        }
    }

    return 0;
}

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