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How do you find the smallest number that has both 4 and 12 as a factor?
Wiki User
∙ 12y ago
The question wants to know the least common multiple of 4 and 12. The way to do this is to find the prime factors of these numbers. In this case:
4=2x2
12=2x2x3
The next step is to find any common factors and discard the duplicate. Both numbers have two 2s, so we can discard 2 of these. That leaves us with 2, 2 and 3. Multiply these to give the LCF:
2x2x3=12
Thus 12 is the smallest number that has both 4 and 12 as a factor.
Wiki User
∙ 12y ago
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