### It is a number which is the product of two consecutive integers, that is, a number of the form n(n + 1).

For Example: 12 is a pronic number because it is a result of -> 3*(3+1) =3*4= 12

#### For other number related programs check the given link

https://java4school.com/important-number-programs-icse-part-4

#### Write a program to accept a number and check whether the number is a pronic number or not.

```
import java.io.*;
class pronic //the product of consecutive integers e.g., 72, 110
{
public static void main()throws IOException
{
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
System.out .println("Enter a number");
int num=Integer.parseInt(br.readLine());
int ans=0;
for(int i=0;i<num;i++)
{
if(i*(i+1)==num)
{
ans=1;
break;
}
}
if(ans==1)
{
System.out.println("It is a pronic number");
}
else
{
System.out.println("It is not pronic number");
}
}
}
```

**Output:**

Enter a number

12

It is a pronic number