what is the smallest value of m such that the lcm of m is 21 and 63
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LCM of 63 and 21 is the smallest number among all common multiples of 63 and 21. The first few multiples of 63 and 21 are (63, 126, 189, 252, . . . ) and (21, 42, 63, 84, 105, 126, . . . ) respectively. There are 3 commonly used methods to find LCM of 63 and 21 - by division method, by prime factorization, and by listing multiples.
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