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Anonymous
We all know this is homework. So you are not getting the answer. Oh, this is homeschooling?? Well, then.......... Just kidding the factor pairs of 18 is 1x18, 9x2, and 6x3.
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1x18=182x9=183x6=183 separate pairs.
There are three factor pairs for 18:
Three of them.
18 is a single number. The factor pairs of 18 are (18,1)(9,2)(6,3)
One pair: it's a prime number.
Eight of them.
Two of them.