Program to Check Number is a Prime, Armstrong, or Perfect Square using For loop
- Write a program to Check Number is a Prime, Armstrong, or Perfect Square using For loop in C
- Write a program to Check Number is a Prime, Armstrong, or Perfect Square using For loop in C++
- Write a program to Check Number is a Prime, Armstrong, or Perfect Square using For loop in Python
- Write a program to Check Number is a Prime, Armstrong, or Perfect Square using For loop in PHP
- Write a program to Check Number is a Prime, Armstrong, or Perfect Square using For loop in Java
- Write a program to Check Number is a Prime, Armstrong, or Perfect Square using For loop in Java Script
- Write a program to Check Number is a Prime, Armstrong, or Perfect Square using For loop in C#
Explanation:
- Prime Check:
- A number less than 2 is not prime.
- Iterate from 2 to the square root of the number. If the number is divisible by any of these, it’s not prime.
- Armstrong Check:
- Convert the number to a string to iterate through its digits.
- Calculate the sum of each digit raised to the power of the total number of digits.
- If the sum equals the original number, it’s an Armstrong number.
- Perfect Square Check:
- Iterate from 0 to the number.
- Check if the square of the current number equals the input number.
- Exit early if the square exceeds the input number.
This approach is straightforward and uses for loops for all checks.
Program to Check Number is a Prime, Armstrong, or Perfect Square using For loop
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C
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C++
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Python
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PHP
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JAVA
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Java Script
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C#
#include <stdio.h>
#include <math.h>
// Function to check Prime
int is_prime(int num) {
if (num <= 1) return 0;
for (int i = 2; i <= sqrt(num); i++) {
if (num % i == 0) return 0;
}
return 1;
}
// Function to check Armstrong
int is_armstrong(int num) {
int sum = 0, temp = num, digit;
while (temp > 0) {
digit = temp % 10;
sum += digit * digit * digit;
temp /= 10;
}
return sum == num;
}
// Function to check Perfect Square
int is_perfect_square(int num) {
for (int i = 1; i * i <= num; i++) {
if (i * i == num) return 1;
}
return 0;
}
int main() {
int n;
printf("Enter a number: ");
scanf("%d", &n);
if (is_prime(n)) printf("%d is a Prime Number.\n", n);
else printf("%d is not a Prime Number.\n", n);
if (is_armstrong(n)) printf("%d is an Armstrong Number.\n", n);
else printf("%d is not an Armstrong Number.\n", n);
if (is_perfect_square(n)) printf("%d is a Perfect Square.\n", n);
else printf("%d is not a Perfect Square.\n", n);
return 0;
}
#include <iostream>
#include <cmath>
using namespace std;
// Function to check Prime
bool is_prime(int num) {
if (num <= 1) return false;
for (int i = 2; i <= sqrt(num); i++) {
if (num % i == 0) return false;
}
return true;
}
// Function to check Armstrong
bool is_armstrong(int num) {
int sum = 0, temp = num, digit;
while (temp > 0) {
digit = temp % 10;
sum += pow(digit, 3);
temp /= 10;
}
return sum == num;
}
// Function to check Perfect Square
bool is_perfect_square(int num) {
for (int i = 1; i * i <= num; i++) {
if (i * i == num) return true;
}
return false;
}
int main() {
int n;
cout << "Enter a number: ";
cin >> n;
if (is_prime(n)) cout << n << " is a Prime Number." << endl;
else cout << n << " is not a Prime Number." << endl;
if (is_armstrong(n)) cout << n << " is an Armstrong Number." << endl;
else cout << n << " is not an Armstrong Number." << endl;
if (is_perfect_square(n)) cout << n << " is a Perfect Square." << endl;
else cout << n << " is not a Perfect Square." << endl;
return 0;
}
def is_prime(num):
if num <= 1:
return False
for i in range(2, int(num**0.5) + 1):
if num % i == 0:
return False
return True
def is_armstrong(num):
sum_of_cubes = 0
temp = num
while temp > 0:
digit = temp % 10
sum_of_cubes += digit**3
temp //= 10
return sum_of_cubes == num
def is_perfect_square(num):
for i in range(1, num + 1):
if i * i == num:
return True
if i * i > num:
break
return False
n = int(input("Enter a number: "))
if is_prime(n):
print(f"{n} is a Prime Number.")
else:
print(f"{n} is not a Prime Number.")
if is_armstrong(n):
print(f"{n} is an Armstrong Number.")
else:
print(f"{n} is not an Armstrong Number.")
if is_perfect_square(n):
print(f"{n} is a Perfect Square.")
else:
print(f"{n} is not a Perfect Square.")
<?php
function is_prime($num) {
if ($num <= 1) return false;
for ($i = 2; $i <= sqrt($num); $i++) {
if ($num % $i == 0) return false;
}
return true;
}
function is_armstrong($num) {
$sum = 0;
$temp = $num;
while ($temp > 0) {
$digit = $temp % 10;
$sum += $digit ** 3;
$temp = (int)($temp / 10);
}
return $sum == $num;
}
function is_perfect_square($num) {
for ($i = 1; $i * $i <= $num; $i++) {
if ($i * $i == $num) return true;
}
return false;
}
$n = (int)readline("Enter a number: ");
if (is_prime($n)) echo "$n is a Prime Number.\n";
else echo "$n is not a Prime Number.\n";
if (is_armstrong($n)) echo "$n is an Armstrong Number.\n";
else echo "$n is not an Armstrong Number.\n";
if (is_perfect_square($n)) echo "$n is a Perfect Square.\n";
else echo "$n is not a Perfect Square.\n";
?>
import java.util.Scanner;
public class CheckNumber {
public static boolean isPrime(int num) {
if (num <= 1) return false;
for (int i = 2; i <= Math.sqrt(num); i++) {
if (num % i == 0) return false;
}
return true;
}
public static boolean isArmstrong(int num) {
int sum = 0, temp = num, digit;
while (temp > 0) {
digit = temp % 10;
sum += Math.pow(digit, 3);
temp /= 10;
}
return sum == num;
}
public static boolean isPerfectSquare(int num) {
for (int i = 1; i * i <= num; i++) {
if (i * i == num) return true;
}
return false;
}
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.print("Enter a number: ");
int n = scanner.nextInt();
if (isPrime(n)) System.out.println(n + " is a Prime Number.");
else System.out.println(n + " is not a Prime Number.");
if (isArmstrong(n)) System.out.println(n + " is an Armstrong Number.");
else System.out.println(n + " is not an Armstrong Number.");
if (isPerfectSquare(n)) System.out.println(n + " is a Perfect Square.");
else System.out.println(n + " is not a Perfect Square.");
scanner.close();
}
}
function isPrime(num) {
if (num <= 1) return false;
for (let i = 2; i <= Math.sqrt(num); i++) {
if (num % i === 0) return false;
}
return true;
}
function isArmstrong(num) {
let sum = 0, temp = num;
while (temp > 0) {
let digit = temp % 10;
sum += Math.pow(digit, 3);
temp = Math.floor(temp / 10);
}
return sum === num;
}
function isPerfectSquare(num) {
for (let i = 1; i * i <= num; i++) {
if (i * i === num) return true;
}
return false;
}
let n = parseInt(prompt("Enter a number: "));
if (isPrime(n)) console.log(`${n} is a Prime Number.`);
else console.log(`${n} is not a Prime Number.`);
if (isArmstrong(n)) console.log(`${n} is an Armstrong Number.`);
else console.log(`${n} is not an Armstrong Number.`);
if (isPerfectSquare(n)) console.log(`${n} is a Perfect Square.`);
else console.log(`${n} is not a Perfect Square.`);
using System;
class Program {
static bool IsPrime(int num) {
if (num <= 1) return false;
for (int i = 2; i <= Math.Sqrt(num); i++) {
if (num % i == 0) return false;
}
return true;
}
static bool IsArmstrong(int num) {
int sum = 0, temp = num, digit;
while (temp > 0) {
digit = temp % 10;
sum += (int)Math.Pow(digit, 3);
temp /= 10;
}
return sum == num;
}
static bool IsPerfectSquare(int num) {
for (int i = 1; i * i <= num; i++) {
if (i * i == num) return true;
}
return false;
}
static void Main() {
Console.Write("Enter a number: ");
int n = int.Parse(Console