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C program to Check whether the Given Number is Prime or not

robaa
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2022-11-24
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Write a C program to Check whether the Given Number is Prime or not. Here’s simple C program to Check whether the Given Number is Prime or not in C Programming Language.

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robaa
2022-11-24
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Numbers in Ca

Normally, when we work with Numbers, we use primitive data types such as int, short, long, float and double, etc. The number data types, their possible values and number ranges have been explained while discussing C Data Types.

Here is source code of the C program to Check whether the Given Number is Prime or not. The C program is successfully compiled and run(on Codeblocks) on a Windows system. The program output is also shown in below.

SOURCE CODE : :

/* C program to Check whether the Given Number is Prime or not  */

#include <stdio.h>

int main()
{
    int tally;
    int number;
    unsigned char flag=0;

    printf("\nEnter any integer number :: ");
    scanf("%d",&number);

    for(tally=2; tally<(number/2); tally++)
    {
        if(number%tally ==0)
        {
            flag=1;
            break;
        }
    }

    if(flag==0)
        printf("\nThe Entered Number [ %d ] is a Prime Number.\n",number);
    else
        printf("\nThe Entered Number [ %d ] is not a Prime Number.\n",number);

    return 0;
}

OUTPUT : :

/* C program to Check whether the Given Number is Prime or not  */

Enter any integer number :: 231

The Entered Number [ 231 ] is not a Prime Number.

Process returned 0

Above is the source code for C program to Check whether the Given Number is Prime or not which is successfully compiled and run on Windows System.The Output of the program is shown above .

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C Number Solved Programs – C Programming
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