Program to check whether given Integer is whether integer is power of 2 or not

Description

Sample Input:
64
Sample Output:
64 is Power of 2
(2*2*2*2*2*2=64)

Solution

#include<stdio.h>
int main()
{
    	int number, n,i,flag=0;

    	printf("Enter a Number: ");
    	scanf("%d",&number);
	n=number;

    	while(n>1)
	{
		if(n%2!=0)
		{
			flag=1;
			break;
		}
		n=n/2;
	}
	if(flag==0)
	{
		printf("%d is a power of 2 ",number);
	}
	else
	{
		printf("%d is not power of 2 ",number);
	}
		
	return 0;
}

Explanation

refer video tutorial



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