In this post, we will learn how to check if a number is a perfect square in Python with a very simple example and algorithm, but before we jump into the programming part, let’s see what is a perfect square.

Feb 17, 2023 · Use Newton's method to quickly zero in on the nearest integer square root, then square it and see if it's your number. See isqrt . Python ≥ 3.8 has math.isqrt .

Jul 27, 2023 · To check if a number is a perfect square in a list using a Python program, you can iterate through the list and verify if each element is a perfect square. A perfect square is an integer that can be expressed as the square of an integer.

If the goal is to determine whether a number is a perfect square, I would think it would be simpler (and perhaps more efficient) to use math builtins, e.g.: def is_perfect_square(n): if not ( ( isinstance(n, int) or isinstance(n, long) ) and ( n >= 0 ) ): return False else: return math.sqrt(n) == math.trunc(math.sqrt(n))

Mar 8, 2024 · Calculating the square root and checking if it’s an integer is a straightforward way to verify if a number is a perfect square. Python’s math.sqrt() function is used, and then we verify if the square root is an integer using the is_integer() method. Here’s an example: import math def is_perfect_square(num): sqrt = math.sqrt(num) return ...

Mar 31, 2025 · This method uses the math.isqrt() function to calculate the square root of a number and check if the integer square root, when squared, equals the original number to determine if it is a perfect square in Python.

Mar 13, 2025 · In this tutorial, we will write a Python program to check whether a given number is a perfect square. print(f" {number} is a perfect square.") print(f" {number} is not a perfect square.")

Jun 23, 2022 · A number that is equal to the product of two whole equal numbers is a perfect square. For example, 25 is a perfect square as its square root is 5 – a whole number. In this tutorial, we will see how to check if a number is perfect in Python using the …

Jul 4, 2023 · One efficient approach to check for perfect squares in Python is to compute the square root of the given number using the math.sqrt() function and then verify if the square root is an integer using the modulo operator (%).

Dec 13, 2024 · What is a perfect square? A perfect square is a number that is the square of an integer. How can you determine if a number is a perfect square in Python? You can use the math module’s math.sqrt () function and check if the square of its integer form equals the original number. Why use the math.isqrt () function?