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OK suppose this is your question
what is the least common multiple of 21 and 16?21 is 3 times 7
16 is 2 to the 4th power (2 times 2 times 2 times 2)
So these numbers have no factors in common.
Therefore, to find the least common multiple, you multiply them together:
21 x 16 = 126 + 210 = 336
hope this helps give more detail you only put 21 whats the other number?
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.
Since 221 is a single number, you could say that it shares all of its multiples with itself. So the least multiple of 221 is 221.
There is no Greatest Common Factor (GCF) for a single number. The Greatest Common Factor (GCF) is the largest factor common to two or more given numbers.
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