C program to find a Number is Prime or not ~ mkniit ~ gniitsolution

C program to find a Number is prime or not. It is a simple source code that provides the output of an actual Prime number. Take care of a questions for your interviews or students exam. This is a totally free of cost code.

NUMBER IS PRIME OR NOT IN C

This C program is used find the given number is prime or not by using different statements like looping & unconditional statement. Check the entered value with condition of if(p_flag == 1). If it is satisfies the condition, then print a number as prime.  Otherwise it is not a prime number.

C CODE:

Q: Write a C program to check whether a given input value is Prime number or not.

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/* Title: Prime number program Author: Vinoth Selvaraj © http://students3k.com */ //Header files #include<stdio.h> #include<conio.h> //Global variable int isPrime(int);   void main() {     //Program variables     int cr,num,p_flag=0;       clrscr(); //Function to clear previous output     printf("Enter the value:"); //Display function     scanf("%d",&num); //Getting input value function } int isPrime(num) { for(cr=2;cr<num/2;cr++) //Looping statement {     if(num%cr==0) //Conditional statement     {         p_flag=1;         break;     } } }       if(p_flag == 1)         printf("Number is not prime");     else         printf("Number is prime");     getch(); }