# Check if number is power of 4

Here given code implementation process.

```
// C program for
// Check if number is power of 4
#include <stdio.h>
// Check if that given number is power of 4 or not
void isPowerOfFour(int number)
{
if ((number % 3 == 1) && (number & number - 1) == 0)
{
/*
The following cases are fulfilled to determine number is power of 4
1) When the number is divided by 3, its remainder should be 1 .
2) And it has only one active bit.
*/
printf(" Number %d is power of 4 \n", number);
}
else
{
printf(" Number %d is not power of 4 \n", number);
}
}
int main(int argc, char
const *argv[])
{
// Test Cases
isPowerOfFour(16);
isPowerOfFour(8);
isPowerOfFour(40);
isPowerOfFour(64);
// 4 ^ 0 = 1
isPowerOfFour(1);
return 0;
}
```

#### input

```
Number 16 is power of 4
Number 8 is not power of 4
Number 40 is not power of 4
Number 64 is power of 4
Number 1 is power of 4
```

```
/*
Java Program for
Check if number is power of 4
*/
public class Power
{
// Check if that given number is power of 4 or not
public void isPowerOfFour(int number)
{
if ((number % 3 == 1) && (number & number - 1) == 0)
{
// The following cases are fulfilled to determine
// number is power of 4
// 1) When the number is divided by 3, its remainder should be 1 .
// 2) And it has only one active bit.
System.out.println(" Number " + number + " is power of 4 ");
}
else
{
System.out.println(" Number " + number + " is not power of 4 ");
}
}
public static void main(String[] args)
{
Power task = new Power();
// Test Cases
task.isPowerOfFour(16);
task.isPowerOfFour(8);
task.isPowerOfFour(40);
task.isPowerOfFour(64);
// 4 ^ 0 = 1
task.isPowerOfFour(1);
}
}
```

#### input

```
Number 16 is power of 4
Number 8 is not power of 4
Number 40 is not power of 4
Number 64 is power of 4
Number 1 is power of 4
```

```
// Include header file
#include <iostream>
using namespace std;
/*
C++ Program for
Check if number is power of 4
*/
class Power
{
public:
// Check if that given number is power of 4 or not
void isPowerOfFour(int number)
{
if ((number % 3 == 1) && (number &number - 1) == 0)
{
// The following cases are fulfilled to determine
// number is power of 4
// 1) When the number is divided by 3, its remainder should be 1 .
// 2) And it has only one active bit.
cout << " Number " << number << " is power of 4 " << endl;
}
else
{
cout << " Number " << number << " is not power of 4 " << endl;
}
}
};
int main()
{
Power *task = new Power();
// Test Cases
task->isPowerOfFour(16);
task->isPowerOfFour(8);
task->isPowerOfFour(40);
task->isPowerOfFour(64);
// 4 ^ 0 = 1
task->isPowerOfFour(1);
return 0;
}
```

#### input

```
Number 16 is power of 4
Number 8 is not power of 4
Number 40 is not power of 4
Number 64 is power of 4
Number 1 is power of 4
```

```
// Include namespace system
using System;
/*
Csharp Program for
Check if number is power of 4
*/
public class Power
{
// Check if that given number is power of 4 or not
public void isPowerOfFour(int number)
{
if ((number % 3 == 1) && (number & number - 1) == 0)
{
// The following cases are fulfilled to determine
// number is power of 4
// 1) When the number is divided by 3, its remainder should be 1 .
// 2) And it has only one active bit.
Console.WriteLine(" Number " + number + " is power of 4 ");
}
else
{
Console.WriteLine(" Number " + number + " is not power of 4 ");
}
}
public static void Main(String[] args)
{
Power task = new Power();
// Test Cases
task.isPowerOfFour(16);
task.isPowerOfFour(8);
task.isPowerOfFour(40);
task.isPowerOfFour(64);
// 4 ^ 0 = 1
task.isPowerOfFour(1);
}
}
```

#### input

```
Number 16 is power of 4
Number 8 is not power of 4
Number 40 is not power of 4
Number 64 is power of 4
Number 1 is power of 4
```

```
<?php
/*
Php Program for
Check if number is power of 4
*/
class Power
{
// Check if that given number is power of 4 or not
public function isPowerOfFour($number)
{
if (($number % 3 == 1) && ($number & $number - 1) == 0)
{
// The following cases are fulfilled to determine
// number is power of 4
// 1) When the number is divided by 3, its remainder should be 1 .
// 2) And it has only one active bit.
echo " Number ".$number.
" is power of 4 ".
"\n";
}
else
{
echo " Number ".$number.
" is not power of 4 ".
"\n";
}
}
}
function main()
{
$task = new Power();
// Test Cases
$task->isPowerOfFour(16);
$task->isPowerOfFour(8);
$task->isPowerOfFour(40);
$task->isPowerOfFour(64);
// 4 ^ 0 = 1
$task->isPowerOfFour(1);
}
main();
```

#### input

```
Number 16 is power of 4
Number 8 is not power of 4
Number 40 is not power of 4
Number 64 is power of 4
Number 1 is power of 4
```

```
/*
Node JS Program for
Check if number is power of 4
*/
class Power
{
// Check if that given number is power of 4 or not
isPowerOfFour(number)
{
if ((number % 3 == 1) && (number & number - 1) == 0)
{
// The following cases are fulfilled to determine
// number is power of 4
// 1) When the number is divided by 3, its remainder should be 1 .
// 2) And it has only one active bit.
console.log(" Number " + number + " is power of 4 ");
}
else
{
console.log(" Number " + number + " is not power of 4 ");
}
}
}
function main()
{
var task = new Power();
// Test Cases
task.isPowerOfFour(16);
task.isPowerOfFour(8);
task.isPowerOfFour(40);
task.isPowerOfFour(64);
// 4 ^ 0 = 1
task.isPowerOfFour(1);
}
main();
```

#### input

```
Number 16 is power of 4
Number 8 is not power of 4
Number 40 is not power of 4
Number 64 is power of 4
Number 1 is power of 4
```

```
# Python 3 Program for
# Check if number is power of 4
class Power :
# Check if that given number is power of 4 or not
def isPowerOfFour(self, number) :
if ((number % 3 == 1) and(number & number - 1) == 0) :
# The following cases are fulfilled to determine
# number is power of 4
# 1) When the number is divided by 3, its remainder should be 1 .
# 2) And it has only one active bit.
print(" Number ", number ," is power of 4 ")
else :
print(" Number ", number ," is not power of 4 ")
def main() :
task = Power()
# Test Cases
task.isPowerOfFour(16)
task.isPowerOfFour(8)
task.isPowerOfFour(40)
task.isPowerOfFour(64)
# 4 ^ 0 = 1
task.isPowerOfFour(1)
if __name__ == "__main__": main()
```

#### input

```
Number 16 is power of 4
Number 8 is not power of 4
Number 40 is not power of 4
Number 64 is power of 4
Number 1 is power of 4
```

```
# Ruby Program for
# Check if number is power of 4
class Power
# Check if that given number is power of 4 or not
def isPowerOfFour(number)
if ((number % 3 == 1) && (number & number - 1) == 0)
# The following cases are fulfilled to determine
# number is power of 4
# 1) When the number is divided by 3, its remainder should be 1 .
# 2) And it has only one active bit.
print(" Number ", number ," is power of 4 ", "\n")
else
print(" Number ", number ," is not power of 4 ", "\n")
end
end
end
def main()
task = Power.new()
# Test Cases
task.isPowerOfFour(16)
task.isPowerOfFour(8)
task.isPowerOfFour(40)
task.isPowerOfFour(64)
# 4 ^ 0 = 1
task.isPowerOfFour(1)
end
main()
```

#### input

```
Number 16 is power of 4
Number 8 is not power of 4
Number 40 is not power of 4
Number 64 is power of 4
Number 1 is power of 4
```

```
/*
Scala Program for
Check if number is power of 4
*/
class Power()
{
// Check if that given number is power of 4 or not
def isPowerOfFour(number: Int): Unit = {
if ((number % 3 == 1) && (number & number - 1) == 0)
{
// The following cases are fulfilled to determine
// number is power of 4
// 1) When the number is divided by 3, its remainder should be 1 .
// 2) And it has only one active bit.
println(" Number " + number + " is power of 4 ");
}
else
{
println(" Number " + number + " is not power of 4 ");
}
}
}
object Main
{
def main(args: Array[String]): Unit = {
var task: Power = new Power();
// Test Cases
task.isPowerOfFour(16);
task.isPowerOfFour(8);
task.isPowerOfFour(40);
task.isPowerOfFour(64);
// 4 ^ 0 = 1
task.isPowerOfFour(1);
}
}
```

#### input

```
Number 16 is power of 4
Number 8 is not power of 4
Number 40 is not power of 4
Number 64 is power of 4
Number 1 is power of 4
```

```
/*
Swift 4 Program for
Check if number is power of 4
*/
class Power
{
// Check if that given number is power of 4 or not
func isPowerOfFour(_ number: Int)
{
if ((number % 3 == 1) && (number & number - 1) == 0)
{
// The following cases are fulfilled to determine
// number is power of 4
// 1) When the number is divided by 3, its remainder should be 1 .
// 2) And it has only one active bit.
print(" Number ", number ," is power of 4 ");
}
else
{
print(" Number ", number ," is not power of 4 ");
}
}
}
func main()
{
let task: Power = Power();
// Test Cases
task.isPowerOfFour(16);
task.isPowerOfFour(8);
task.isPowerOfFour(40);
task.isPowerOfFour(64);
// 4 ^ 0 = 1
task.isPowerOfFour(1);
}
main();
```

#### input

```
Number 16 is not power of 4
Number 8 is not power of 4
Number 40 is not power of 4
Number 64 is not power of 4
Number 1 is power of 4
```

```
/*
Kotlin Program for
Check if number is power of 4
*/
class Power
{
// Check if that given number is power of 4 or not
fun isPowerOfFour(number: Int): Unit
{
if ((number % 3 == 1) && (number and number - 1) == 0)
{
// The following cases are fulfilled to determine
// number is power of 4
// 1) When the number is divided by 3, its remainder should be 1 .
// 2) And it has only one active bit.
println(" Number " + number + " is power of 4 ");
}
else
{
println(" Number " + number + " is not power of 4 ");
}
}
}
fun main(args: Array < String > ): Unit
{
val task: Power = Power();
// Test Cases
task.isPowerOfFour(16);
task.isPowerOfFour(8);
task.isPowerOfFour(40);
task.isPowerOfFour(64);
// 4 ^ 0 = 1
task.isPowerOfFour(1);
}
```

#### input

```
Number 16 is power of 4
Number 8 is not power of 4
Number 40 is not power of 4
Number 64 is power of 4
Number 1 is power of 4
```

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