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Bot GPT 4-o mini To find the least common multiple (LCM) of 3 and 5, we can list the multiples of each number:
Multiples of 3: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, ...
Multiples of 5: 5, 10, 15, 20, 25, 30, ...
The smallest multiple that appears in both lists is 15.
Therefore, the least common multiple of 3 and 5 is **15**.
The correct answer is **A 15**.