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Code Number

Pronic Number

A pronic number, also known as an oblong number, is a positive integer that is the product of two consecutive integers, i.e., n(n+1) for some integer n. In other words, a pronic number is the product of any two consecutive numbers.

For example, 6 is a pronic number because it can be expressed as the product of 2 and 3, which are consecutive integers. Similarly, 12 is a pronic number because it can be expressed as the product of 3 and 4. The first few pronic numbers are: 2, 6, 12, 20, 30, 42, 56, 72, 90, 110, and so on.

The name "pronic" comes from the Greek word "πρόνοια" (prónia), which means foresight or planning, because pronic numbers can be used in certain mathematical situations where planning or foresight is required.

72 Is an Pronic Number
89 Is not an Pronic Number
35 Is not an Pronic Number
30 Is an Pronic Number

72 is a pronic number because it can be expressed as the product of two consecutive integers, namely 8 and 9, that is, 8 x 9 = 72.

89 is not a pronic number because it cannot be expressed as the product of two consecutive integers. The two consecutive integers closest to 89 are 9 and 10, but their product, 9 x 10 = 90, is not equal to 89. Therefore, 89 is not a pronic number.

35 is not a pronic number because it cannot be expressed as the product of two consecutive integers. The two consecutive integers closest to 35 are 5 and 6, but their product, 5 x 6 = 30, is not equal to 35. Therefore, 35 is not a pronic number.

30 is a pronic number because it can be expressed as the product of two consecutive integers, namely 5 and 6, that is, 5 x 6 = 30. Therefore, 30 is a pronic number.

/*
  C Program 
+ Check if a given number is Pronic Number or not
*/
#include<stdio.h>
#include<math.h>

void is_pronic_no(int number)
{
  //Getting square root of a number
  int square = (int) sqrt(number);
  
  //Use to indicate number is pronic or not
  //Initial set zero means number is not pronic
  int flag = 0; 

  for (int i = square; i >= 0 && flag == 0 ; --i)
  {
    //Check that whether product of two consecutive integers is equal to given number?
    if(i*(i+1)==number)
    {
      //When Yes
      flag = 1;
    }
  }
  if(flag==1)
  {
    //When Yes
    printf("%d Is an Pronic Number\n",number);
  }
  else
  {
    //When No
    printf("%d Is not an Pronic Number\n",number);
  }
 
}
int main(){
  //Test Case

  // 72 = 7*8
  is_pronic_no(72);
  is_pronic_no(89);
  is_pronic_no(35);
  //30 = 5 * 6
  is_pronic_no(30);
  
 
  return 0;
}

Output

72 Is an Pronic Number
89 Is not an Pronic Number
35 Is not an Pronic Number
30 Is an Pronic Number
/*
 C++ Program
 Check if a given number is Pronic Number or not
*/
#include<iostream>
#include<math.h>
using namespace std;

class MyNumber {
	public:
		void is_pronic_no(int number) {
			//Getting square root of a number
			int square = (int) sqrt(number);
			//Use to indicate number is pronic or not
			//Initial set false means number is not pronic
			bool flag = false;
			for (int i = square; i >= 0 && flag == false; --i) {
				//Check that whether product of two consecutive integers is equal to given number?

				if (i *(i + 1) == number) {
					//When Yes
					flag = true;
				}
			}
			if (flag == true) {
				//When Yes

				cout << number << " Is an Pronic Number\n";
			} else {
				//When No

				cout << number << " Is not an Pronic Number\n";
			}
		}
};
int main() {
	MyNumber obj;
	//Test Case
	// 72 = 7*8
	obj.is_pronic_no(72);
	obj.is_pronic_no(89);
	obj.is_pronic_no(35);
	//30 = 5 *6
	obj.is_pronic_no(30);
	return 0;
}

Output

72 Is an Pronic Number
89 Is not an Pronic Number
35 Is not an Pronic Number
30 Is an Pronic Number
/*
  Java Program
  Check if a given number is Pronic Number or not
*/
public class MyNumber {
 
 
  public void is_pronic_no(int number)
  {
    //Getting square root of a number
    int square = (int) Math.sqrt(number);
    
    //Use to indicate number is pronic or not
    //Initial set false means number is not pronic
    boolean flag = false; 

    for (int i = square; i >= 0 && flag == false ; --i)
    {
      //Check that whether product of two consecutive integers is equal to given number?
      if(i*(i+1)==number)
      {
        //When Yes
        flag = true;
      }
    }
    if(flag==true)
    {
      //When Yes
      System.out.print(number+" Is an Pronic Number\n");
    }
    else
    {
      //When No
      System.out.print(number+" Is not an Pronic Number\n");
    }
   
  }
  public static void main(String[] args) {

    MyNumber obj = new MyNumber();

    //Test Case

    // 72 = 7*8
    obj.is_pronic_no(72);
    obj.is_pronic_no(89);
    obj.is_pronic_no(35);
    //30 = 5 * 6
    obj.is_pronic_no(30);


  }
}

Output

72 Is an Pronic Number
89 Is not an Pronic Number
35 Is not an Pronic Number
30 Is an Pronic Number
/*
  C# Program
  Check if a given number is Pronic Number or not
*/
using System;
public class MyNumber {


	public void is_pronic_no(int number) {
		//Getting square root of a number
		int square = (int) Math.Sqrt(number);

		//Use to indicate number is pronic or not
		//Initial set false means number is not pronic
		Boolean flag = false;

		for (int i = square; i >= 0 && flag == false; --i) {
			//Check that whether product of two consecutive integers is equal to given number?
			if (i * (i + 1) == number) {
				//When Yes
				flag = true;
			}
		}
		if (flag == true) {
			//When Yes
			Console.Write(number + " Is an Pronic Number\n");
		} else {
			//When No
			Console.Write(number + " Is not an Pronic Number\n");
		}

	}
	public static void Main(String[] args) {

		MyNumber obj = new MyNumber();

		//Test Case

		// 72 = 7*8
		obj.is_pronic_no(72);
		obj.is_pronic_no(89);
		obj.is_pronic_no(35);
		//30 = 5 * 6
		obj.is_pronic_no(30);


	}
}

Output

72 Is an Pronic Number
89 Is not an Pronic Number
35 Is not an Pronic Number
30 Is an Pronic Number
# Python 3 Program
# Check if a given number is Pronic Number or not
class MyNumber :
	def is_pronic_no(self, number) :
		# Getting square root of a number
		square = int(number**(0.5))
		# Use to indicate number is pronic or not
		# Initial set false means number is not pronic
		flag = False
		i = square
		while (i >= 0 and flag == False) :
			# Check that whether product of two consecutive integers is equal to given number?

			if (i * (i + 1) == number) :
				# When Yes
				flag = True
			
			i -= 1
		
		if (flag == True) :
			# When Yes
			print(number ," Is an Pronic Number")
		else :
			# When No
			print(number ," Is not an Pronic Number")
		
	

def main() :
	obj = MyNumber()
	# Test Case
	#  72 = 7*8
	obj.is_pronic_no(72)
	obj.is_pronic_no(89)
	obj.is_pronic_no(35)
	# 30 = 5 * 6
	obj.is_pronic_no(30)


if __name__ == "__main__":
	main()

Output

72 Is an Pronic Number
89 Is not an Pronic Number
35 Is not an Pronic Number
30 Is an Pronic Number
# Ruby Program 
# Check if a given number is Pronic Number or not
class MyNumber 
	def is_pronic_no(number) 
		# Getting square root of a number
		square = (number**(0.5)).to_i
		# Use to indicate number is pronic or not
		# Initial set false means number is not pronic
		flag = false
		i = square
		while (i >= 0 and flag == false) 
			# Check that whether product of two consecutive integers is equal to given number?

			if (i * (i + 1) == number) 
				# When Yes
				flag = true
			end
			i -= 1
		end
		if (flag == true) 
			# When Yes

			print(number ," Is an Pronic Number\n")
		else 
			# When No

			print(number ," Is not an Pronic Number\n")
		end
	end
end
def main() 
	obj = MyNumber.new()
	# Test Case
	#  72 = 7*8
	obj.is_pronic_no(72)
	obj.is_pronic_no(89)
	obj.is_pronic_no(35)
	# 30 = 5 * 6
	obj.is_pronic_no(30)
end
main()

Output

72 Is an Pronic Number
89 Is not an Pronic Number
35 Is not an Pronic Number
30 Is an Pronic Number
/*
 Scala Program
 Check if a given number is Pronic Number or not
*/
class MyNumber {
	def is_pronic_no(number: Int): Unit = {
		//Getting square root of a number
		var square: Int = (scala.math.sqrt(number)).toInt;
		//Use to indicate number is pronic or not
		//Initial set false means number is not pronic
		var flag: Boolean = false;
		var i: Int = square;
		while (i >= 0 && flag == false) {
			//Check that whether product of two consecutive integers is equal to given number?

			if (i * (i + 1) == number) {
				//When Yes
				flag = true;
			}
			i -= 1;
		}
		if (flag == true) {
			//When Yes
			print(s"$number Is an Pronic Number\n");
		} else {
			//When No
			print(s"$number Is not an Pronic Number\n");
		}
	}
}
object Main {
	def main(args: Array[String]): Unit = {
		var obj: MyNumber = new MyNumber();
		//Test Case
		// 72 = 7*8
		obj.is_pronic_no(72);
        obj.is_pronic_no(89);
        obj.is_pronic_no(35);
		//30 = 5 * 6
		obj.is_pronic_no(30);
	}
}

Output

72 Is an Pronic Number
89 Is not an Pronic Number
35 Is not an Pronic Number
30 Is an Pronic Number
/*
  Swift 4 Program
  Check if a given number is Pronic Number or not
*/
import Foundation
class MyNumber {
	func is_pronic_no(_ number: Int) {
		//Getting square root of a number
		let square: Int = Int(Double(number).squareRoot());
		//Use to indicate number is pronic or not
		//Initial set false means number is not pronic
		var flag: Bool = false;
		var i: Int = square;
		while (i >= 0 && flag == false) {
			//Check that whether product of two consecutive integers is equal to given number?

			if (i * (i + 1) == number) {
				//When Yes
				flag = true;
			}
			i -= 1;
		}
		if (flag == true) {
			//When Yes
			print(number ," Is an Pronic Number");
		} else {
			//When No
			print(number ," Is not an Pronic Number");
		}
	}
}
func main() {
	let obj: MyNumber = MyNumber();
	//Test Case
	// 72 = 7*8
	obj.is_pronic_no(72);
	obj.is_pronic_no(89);
	obj.is_pronic_no(35);
	//30 = 5 * 6
	obj.is_pronic_no(30);
}
main();

Output

72  Is an Pronic Number
89  Is not an Pronic Number
35  Is not an Pronic Number
30  Is an Pronic Number
<?php
/*
  Php Program
  Check if a given number is Pronic Number or not
*/
class MyNumber {
	public 	function is_pronic_no($number) {
		//Getting square root of a number
		$square = intval(sqrt($number));
		//Use to indicate number is pronic or not
		//Initial set false means number is not pronic
		$flag = false;
		for ($i = $square; $i >= 0 && $flag == false; --$i) {
			//Check that whether product of two consecutive integers is equal to given number?

			if ($i *($i + 1) == $number) {
				//When Yes
				$flag = true;
			}
		}
		if ($flag == true) {
			//When Yes

			echo($number ." Is an Pronic Number\n");
		} else {
			//When No

			echo($number ." Is not an Pronic Number\n");
		}
	}
};

function main() {
	$obj = new MyNumber();
	//Test Case
	// 72 = 7*8

	$obj->is_pronic_no(72);
	$obj->is_pronic_no(89);
	$obj->is_pronic_no(35);
	//30 = 5 *6

	$obj->is_pronic_no(30);
}
main();

Output

72 Is an Pronic Number
89 Is not an Pronic Number
35 Is not an Pronic Number
30 Is an Pronic Number
/*
 Node Js Program
 Check if a given number is Pronic Number or not
*/
class MyNumber {
	is_pronic_no(number) {
		//Getting square root of a number
		var square = parseInt(Math.sqrt(number));
		//Use to indicate number is pronic or not
		//Initial set false means number is not pronic
		var flag = false;
		for (var i = square; i >= 0 && flag == false; --i) {
			//Check that whether product of two consecutive integers is equal to given number?

			if (i *(i + 1) == number) {
				//When Yes
				flag = true;
			}
		}
		if (flag == true) {
			//When Yes

			process.stdout.write(number + " Is an Pronic Number\n");
		} else {
			//When No

			process.stdout.write(number + " Is not an Pronic Number\n");
		}
	}
}

function main(args) {
	var obj = new MyNumber();
	//Test Case
	// 72 = 7*8
	obj.is_pronic_no(72);
	obj.is_pronic_no(89);
	obj.is_pronic_no(35);
	//30 = 5 *6
	obj.is_pronic_no(30);
}
main();

Output

72 Is an Pronic Number
89 Is not an Pronic Number
35 Is not an Pronic Number
30 Is an Pronic Number

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