Category Number Based Programs

A prime number is a number that has exactly two factors: 1 and itself. The first few prime numbers are: In this tutorial, we will write a Python program to find the Nth prime number, where N is a user-defined…

A perfect square is a number that is the square of an integer. In simple terms, if you can find a whole number that, when multiplied by itself, gives the original number, then it is a perfect square. Examples of…

The sum of digits of a number is the total sum of all its individual digits. For example, the sum of digits of 123 is: In this tutorial, we will write a Python program to calculate the sum of digits…

A Disarium number is a number in which the sum of its digits, each raised to the power of its position, equals the original number. 💡 Example of a Disarium Number: Take 89: Since the sum equals the original number,…

Natural numbers are positive integers starting from 1, 2, 3, 4, 5, … and so on. The sum of the first N natural numbers is calculated using the formula: For example, the sum of the first 5 natural numbers is:…

An Armstrong number (also known as a narcissistic number) is a number that is equal to the sum of its own digits each raised to the power of the number of digits. For example, 153 is an Armstrong number because:…

The factorial of a number is the product of all positive integers from 1 to that number. It is denoted by n! and is commonly used in combinatorics, probability, and algebra. For example: In this tutorial, we will write a…

A prime number is a natural number greater than 1 that has only two factors: 1 and itself. Some examples of prime numbers are 2, 3, 5, 7, 11, 13, etc. In this tutorial, we will write a Python program…