Prime Factor Calculator

Introduction

This tool finds all of the Prime Factors of any given number, i.e. the smallest Prime Numbers (which are always Integers) that can be multiplied together to make the original number.

This Prime Factors Calculator is useful for simplifying fractions, finding the highest common factor (HCF) and/or the lowest common multiple (LCM) of a number, and understanding how numbers are built.

Instructions

1. Type, or Copy-and-Paste the number to be analysed, into the text box below.
2. Click the 'Calculate' button below the input fields.
3. The results will be displayed below.