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A special diagram where we find the factors of a number, then the factors of those numbers, etc, until we can't factor any more. The ends are all the prime factors of the original number. The number one (1) is neither prime nor composite, and is not shown on the factor tree. (Prime Factorization) What multiplies to make 8? Remember to use only PRIME factors. 2 2 8 What multiplies to make 12? Remember to use only PRIME factors. 2 2 12 2 What multiplies to make 18? Remember to use only PRIME factors. 2 2 18 What multiplies to make 20? Remember to use only PRIME factors. 2 2 20 2 What multiplies to make 27? Remember to use only PRIME factors. 3 3 27 What multiplies to make 28? Remember to use only PRIME factors. 2 2 28 2 What multiplies to make 30? Remember to use only PRIME factors. 2 2 30 3 What multiplies to make 42? Remember to use only PRIME factors. 2 2 42 3 What multiplies to make 44? Remember to use only PRIME factors. 2 2 44 2 What multiplies to make 45? Remember to use only PRIME factors. 5 5 45 What multiplies to make 50? Remember to use only PRIME factors. 5 5 50 2 What multiplies to make 52? Remember to use only PRIME factors. 2 2 52 2 What multiplies to make 66? Remember to use only PRIME factors. 2 2 66 3 What multiplies to make 68? Remember to use only PRIME factors. 2 2 68 2 What multiplies to make 70? Remember to use only PRIME factors. 2 2 70 5 What multiplies to make 75? Remember to use only PRIME factors. 5 5 75 3 What multiplies to make 76? Remember to use only PRIME factors. 2 2 76 2 What multiplies to make 78? Remember to use only PRIME factors. 2 2 78 3 What multiplies to make 92? Remember to use only PRIME factors. 2 2 92 2 What multiplies to make 98? Remember to use only PRIME factors. 2 2 98 What multiplies to make 99? Remember to use only PRIME factors. 3 3 99 3 |