The least common multiple (LCM) is often also called the lowest common multiple or smallest common multiple. Keep in mind that these different terms all refer to the same thing: the smallest positive integer which is a multiple of two or more numbers.
The least common multiple of 3 and 45 is 45.
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The least common multiple of 45 , 3 , 5 = 45
45
Since 45 is a multiple of 3, it is automatically the LCM.
1, 3 is next.* * * * *That is the least common factor (which is a meaningless concept), not the least common multiple!LCM(15, 45, 75) = 225
The LCM is: 45