Finding the Factors of a Number

Python Basics: Conditional Logic and Control Flow Ian Currie 00:42

Transcript
Discussion (3)

00:01 Surprise! This lesson is not a lesson. It’s a challenge. Your challenge is to find the factors of a number. A factor is a positive number that can divide another number perfectly without any remainder. So for example, say you have 10.

00:16 5 is a factor of 10 because it divides perfectly. If you do 10 divided by 5, you get 2 without any remainder. 5 is a factor of 10. So is 2, because if you divide 10 by 2, you get 5 with no remainder.

00:32 So the challenge is for an input of any positive whole number—an integer—list all the factors of that number.

Steinar Martinussen on Nov. 18, 2023

This was a suprise challenge indeed.

Is the goal to solve this with just the knowledge from this course and its contents ? I might be missing some Python knowledge to make this happen.

The sample code attached to this course is also belonging to another course: Real Python: Functions and Loops course by Philipp Acsany

Martin Breuss RP Team on Nov. 22, 2023

@Steinar Martinussen Thanks for reporting the mismatched sample code download.

If you want a walkthrough to a possible solution, then you can check the section in the associated exercises course :)

doink on May 31, 2024

def factor_calculator(num):
    internal_num = num
    for factor in range(2, 10):
        if internal_num % factor == 0:
            return factor
        else:
            continue
    return internal_num

number = input("Enter a number: ")

if number.isnumeric():

    number = int(number)

    if number <= 0:
        print("Enter a number greater than 0 ")
    else:
        num_res = number
        factors =[]

        factor = factor_calculator(num_res)

        while num_res != factor:
            factors.append(factor)
            num_res = int(num_res / factor)
            factor = factor_calculator(num_res)

        factors.append(factor)

        if len(factors) == 1:
            text = ", it's a prime number!"
        else:
            text = ""

        print(f"The {number=} is divided into {factors=}{text}")

else:

print("Please, enter a valid number!")

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