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We know that 3x2x5 = 30. So 2, 3, and 5 are factors of 30. 30 is a multiple of each of 3, 2, and 5. If a number only has itself and 1 as factors, then the number is “prime”. Don’t worry, this is explained in much more depth in the tutorials in this topic. We will also explore some mathematical patterns.

Visit Factors, multiples and patterns (Khan Academy) to


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