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the prime factorizations of these number are:

15 = 1 * 3 * 5

65 = 1 * 5 * 13

you can compute the LCM by multiplying together the prime factors of each number, but only counting the factors that appear in both numbers once.

So you get: 1 * 3 * 5 *13 = 195

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15y ago

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