What is least common multiple of 28,12,14,21?
1 answer:
Reducing the numbers to prime factors
28 = 7 * 2 * 2
12 = 3 * 2 * 2
14 = 7 * 2
21 = 7 * 3
None of the numbers have a prime number in common with the others.
So, the least common multiple would be 12
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