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Which of these numbers is a common factor of 18 and42
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Which of these numbers is a common factor of 18 and42

User XiaoChuan Yu
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18 = 2 x 3 x 3
42 = 2 x 3 x 7

common factor = 2 x 3 = 6

answer
common factor of 18 and 42 is 6
User Hein Zaw Htet
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