Common Multiples?

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What is the most efficient way to find the 3 least common multiples of three different numbers that have no common factors?

2006-07-08 13:58:38 · 3 answers · asked by Anonymous in Education & Reference ➔ Homework Help

3 answers

Use prime factorization.
If the numbers are large, then this is the most efficient way.

If the numbers aren't too big, then you might just list some of the multiples of each number until you find the LCM.

2006-07-08 14:02:13 · answer #1 · answered by MsMath 7 · 3⤊ 0⤋

I would start with the largest number and multiply by 2, 3, 4 ect.. and then divide the answers by the smaller 2 numbers to see if any of them work.

2006-07-08 14:05:29 · answer #2 · answered by KJ 1 · 0⤊ 0⤋

If the numbers are all coprime, then just multiply the numbers together.

2006-07-08 14:03:14 · answer #3 · answered by Pascal 7 · 0⤊ 0⤋