#include <stdio.h>
main()
{
int i,n,p=0;
printf("Enter an integer:");
scanf("%d",&n);
for(i=1; i<=n;i++)
{
if(n%i==0)
p++;
}
if(p==2)
printf("%d is a prime number",n);
else
printf("%d is not a number",n);
}
main()
{
int i,n,p=0;
printf("Enter an integer:");
scanf("%d",&n);
for(i=1; i<=n;i++)
{
if(n%i==0)
p++;
}
if(p==2)
printf("%d is a prime number",n);
else
printf("%d is not a number",n);
}
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