Here's a program to check if a number is a prime number in C:
#include <stdio.h>
#include <stdbool.h>
bool isPrime(int num)
{
if (num <= 1)
return false;
for (int i = 2; i < num; i++)
{
if (num % i == 0)
return false;
}
return true;
}
int main()
{
int num;
printf("Enter a positive integer number: ");
scanf("%d", &num);
if (isPrime(num))
printf("%d is a prime number\n", num);
else
printf("%d is not a prime number\n", num);
return 0;
}
Here's a program to check if a number is a prime number in Python:
def is_prime(num):
if num <= 1:
return False
for i in range(2, num):
if num % i == 0:
return False
return True
num = int(input("Enter a positive integer Number: "))
if is_prime(num):
print(f"{num} is a prime number")
else:
print(f"{num} is not a prime number")
Here's a program to check if a number is a prime number in C++:
#include <iostream>
bool isPrime(int num)
{
if (num <= 1)
return false;
for (int i = 2; i < num; i++)
{
if (num % i == 0)
return false;
}
return true;
}
int main()
{
int num;
std::cout << "Enter a positive integer: ";
std::cin >> num;
if (isPrime(num))
std::cout << num << " is a prime number" << std::endl;
else
std::cout << num << " is not a prime number" << std::endl;
return 0;
}
Here's a program to check if a number is a prime number in C#:
using System;
namespace PrimeNumberCheck
{
class Program
{
static bool IsPrime(int num)
{
if (num <= 1)
return false;
for (int i = 2; i < num; i++)
{
if (num % i == 0)
return false;
}
return true;
}
static void Main(string[] args)
{
Console.Write("Enter a positive integer: ");
int num = int.Parse(Console.ReadLine());
if (IsPrime(num))
Console.WriteLine(num + " is a prime number");
else
Console.WriteLine(num + " is not a prime number");
}
}
}
Here's a program to check if a number is a prime number in JavaScript:
function isPrime(num) {
if (num <= 1) return false;
for (let i = 2; i < num; i++) {
if (num % i === 0) return false;
}
return true;
}
const num = parseInt(prompt("Enter a positive integer: "));
if (isPrime(num)) {
console.log(`${num} is a prime number`);
} else {
console.log(`${num} is not a prime number`);
}
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