The least common multiple (LCM) refers to a multiple that is COMMON to two or more numbers. You have only one number in the question! The least multiple of a number is itself.
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14 = 2*7 45 = 5*9 LCM = 14*45 = 630
Since 45 is a multiple of 9, it is automatically the LCM.
The LCM of 9 and 15 is 45.
The LCM of 7 and 9 is 63.
The LCM is: 630just multiply 90*63 and what i do is go google and look up least common multiple calculator and there you have different options and pick the one that best fits your answer