C Program to Check Whether a given Number is Prime or Not

In this example, we will check whether a given number is Prime or Not. To solve this problem we should know about Prime Numbers.

What is a Prime Number?

Prime Numbers are those numbers which can only be divisible by 1 and the number itself.

For Example: 2,3,5,7,etc are prime numbers, as these numbes are only divisible by 1 and the number itself.

PROGRAM:

#include<stdio.h>
#include<conio.h>
int main()
{
    int x,i,count=0;
    printf("\nEnter the number : ");
    scanf("%d",&x);
    for(i=1;i<=x;i++)
    {
        if(x%i==0)
            count++;
    }
    if(count==2)
    {
        printf("\n%d is a Prime Number",x);
    }
    else
    {
        printf("\n%d is Not a Prime Number",x);
    }
}

OUTPUT:

Enter the number : 5

5 is a Prime Number

NOTE: You Can Comment Your Code if you have solved differently and we will pin it in the comment section. Let's Learn together.

MOTTO:

You Learn, I Learn together We Learn.

Comments

C program to read m x n matrix and calculate the Row sum and Column sum of the matrix.

C program to read m x n matrix and calculate the Row sum and Column sum of the matrix. In this example, we read a m x n matrix whose value would be entered by the user then the sum of row and column is calculated. Here in the example we have taken a matrix of order 3 x 2 whose row sum and column sum is displayed in the output screen. PROGRAM TO READ m x n MATRIX AND CALCULATE THE ROW SUM AND COLUMN SUM OF THE MATRIX: #include <stdio.h> #include <conio.h> void main() { int i,j,m[100][100],row,column,rsum,csum=0; printf( "Enter the row size of the matrix :" ); scanf( "%d" ,&row); printf( "Enter the column size of the matrix :" ); scanf( "%d" ,&column); printf( "Enter the Matrix : " ); ...

C++ program to define a class circle to represent circles. Add a data member radius to store the radius of a circle. Write member functions area() and perimeter() to compute the area and perimeter of a circle.

C++ program to define a class circle to represent circles. Add a data member radius to store the radius of a circle. Write member functions area() and perimeter() to compute the area and perimeter of a circle. To define a Circle class in C++, we start by declaring the class with the class keyword, followed by the name of the class. In this case, we'll call it Circle . We'll then define a private data member to store the radius of the circle. Here's the code to do that: class Circle { private: double radius; }; Next, we need to define public member functions that can set and get the value of the radius, as well as calculate the area and perimeter of the circle. Here's the full code for the Circle class: class Circle { private: double radius; public: void setRadius(double r) { radius = r; } dou...

C program to display ASCII value of a character

C program to display ASCII value of a character In this example we will learn how to display the ASCII value of any character entered by the user through keyboard. To solve this program we must have knowledge about ASCII . PROGRAM #include <stdio.h> int main () { char c; printf ( "Enter a character : " ); scanf ( "%c" ,&c); printf ( "ASCII value of %c =%d" ,c,c); return 0 ; } OUTPUT: ASCII: ASCII Stands for American Standard Code for Information Interchange. It is widely used in computers of all types. It is used to create a standard for character-sets used in electronic components. ASCII codes are of two types - ASCII-7 and ASCII-8. ASCII-7: It is a 7 bit standard ASCII code. In ASCII-7 the first 3...

C program to convert a given temperature value from Fahrenheit to Centigrade and vice versa?

Write a C program to convert a given temperature value from Fahrenheit to Centigrade and vice versa? In this example we will learn how to convert a given temperature in Fahrenheit to Centigrade and to convert given temperature value from Centigrade to Fahrenheit depending on the choice of the user. To solve this program we should have basic knowledge in c and most importantly a clear concept on : Switch Statement And we must know the formula of conversion from Fahrenheit to Centigrade(Celsius) and Centigrade(Celsius) to Fahrenheit. Fahrenheit To Centigrade Centigrade To Fahrenheit PROGRAM #include <stdio.h> #include <conio.h> void main () { float f , c ; int ch ; printf ( "...

C Program to find out the roots of a Quadratic Equation and also test for Real and Complex roots

C Program to find out the roots of a Quadratic Equation and also test for Real and Complex roots. In this example, we will calculate the roots of the quadratic equation by testing for real and complex roots. We can test real and complex roots by checking these conditions : If b 2 −4 ac < 0, then there are no real roots. If b 2 −4 ac = 0, then both the roots are equal. If b 2 −4 ac > 0, then roots are real and distinct. PROGRAM TO FIND OUT THE ROOTS OF A QUADRATIC EQUATION. #include <stdio.h> #include <conio.h> #include <math.h> int main () { int a , b , c , d ; float x , y ; printf ( "Enter coefficient of x^2,x and constant : " ); scanf ( " %d %d %d " ,& a ,& b ,& c ); d = b * b ...

Integrated Learning

Search This Blog