This video tutorial shows how to find the greatest common factor of two numbers by factoring the two numbers to their prime factors. The greatest common factor also called GCF is very useful when it comes to simplifying fractions to their simplest term. Other video tutorials like

- Finding factors of numbers
- Rewriting numbers in factors worksheets
- Prime numbers worksheets
- Identifying prime and composite identification worksheets

LCM of two numbers calculation, calculating the least common multiple of two numbers

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