JavaCodes/program42.c at main · raskarabhi45/JavaCodes · GitHub

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//prime number
#include<stdio.h>
#include<stdbool.h>

int CountFactor(int iNo)
{
    int iCnt=0,iFactCnt=0;
    if(iNo<0)
    {
        iNo=-iNo;
    }
    for(iCnt=2;iCnt<=iNo/2;iCnt++)
    {
        if(iNo%iCnt==0)
        {
            iFactCnt++;
        }
    }
    return iFactCnt;
}

    bool CheckPrime(int iNo)
    {
        int iRet=0;
        iRet=CountFactor(iNo);
        if(iRet==0)
        {
            return true;
        }
        else
        {
            return false;
        }
    }


int main()
{
    int iValue=0;
    bool bRet;

    printf("Enter number\n");
    scanf("%d",&iValue);

    bRet= CheckPrime(iValue);
    if(bRet==true)
    {
        printf("%d is prime number\n",iValue);
    }
    else
    {
        printf("%d is not prime number\n",iValue);
    }

    return 0;
}