prime no program in c
#include<stdio.h>
int main()
{
int n,i;
printf(“nEnter the number : “);
scanf(“%d”,&n);
for(i = 2; i <= n/2; i++)
{
if(n % i ==0)
{
break;
}
}
if(i > n/2)
printf(“n%d is a Prime Numbern”,n);
else
printf(“n%d is not a Prime Numbern”, n);
return 0;
}prime or composite in c using function
#include<stdio.h>
int prime_composite(int num);
void main()
{
int n,ret;
printf ("Enter a number: ");
scanf ("%d",&n);
ret = prime_composite(n);
if(ret == 2 )
printf("nThe number is Primen");
else
printf("nThe number is Compositen");
}
int prime_composite(int num)
{
int i, c=0;
for (i=1;i<=num;i++)
{
if(num%i==0)
c=c+1;
}
return c;
}Copyright © 2021 Codeinu
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