Program to find Prime number in C?
Output:
enter the number
12
12 is not a prime number
enter the number
13
13 is a prime number
By: +Dixit Singla
Prime Number: Prime number is a natural number that can only be divided by 1 or itself .
For example:
13 is a prime number because no number can divide 13 completely. 13 can only be divided by 1 or 13(itself).
Program in C:
#include<stdio.h>
int main()
{
int i;
int n;
int count = 0;
printf("enter the number \n ");
scanf("%d",&n);
for(i = 2 ; i < n ; i++)
{
if((n%i) == 0)
{
count++;
break;
}
}
if(count == 0)
{
printf("%d is a prime number \n",n);
}
else
{
printf("%d is not a prime number \n",n);
}
return 0;
}
Output:
enter the number
12
12 is not a prime number
enter the number
13
13 is a prime number
By: +Dixit Singla
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