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LCM is the short form of least common multiple. In finding the LCM, we multiply
each factor to the greatest number of times it occurs in any of the numbers. Taking
for example, 9 has two 3s, and 21 has one 7, so we multiply 3 two times, and 7
once. This gives us 63, the smallest number that can be divided evenly by 3, 9,
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Aug 18th, 2015
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