*Factors-* all the numbers that divide into the asked number (e.g. factors of 12)

*Finding Prime Factors-* any number can be broken down into a string of prime numbers all multiplied together (called "expressing it as a product of prime factors").

*Factor tree method-* Split the number into two factors. If the number is a prime number, circle it and if not split it up into more factors until you end up with all the prime factors. You can arrange them in order, smallest first.

*Lowest common multiple-* the smallest number that will divide by all the numbers in the question.

*Highest commont factor-* the biggest number that will divide into all the numbers in the question.

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