30 / 2 = 15
15 / 3 = 5
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A factor tree of number is (I think) the numbers that multiply together to form a product. They are prime numbers, too.
Yes. Any number is a factor of itself. 30 x 1 = 30.
15 is a number greater than 10 and a factor of 30.
A factor tree is a representation of the process of finding the prime factorization of a given number.
Prime numbers don't have factor trees. So if you can create a tree, your number's composite.