SOLUTION: How many of the first 600 counting numbers are divisible by 2 or 3

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Question 722269: How many of the first 600 counting numbers are divisible by 2 or 3
Answer by tommyt3rd(5050) About Me  (Show Source):
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Numbers divisible by 6 are divisible by 2 and by 3 so we need to avoid counting them twice.
600(1/2+1/3-1/6)=400

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