Sum of multiples of 3 and 5


This is a companion discussion topic for the original entry at http://iq.opengenus.org/sum-of-multiples-of-3-and-5/

This post is very confusing at the beginning. The author has enumerated the first 5 multiples of 3 as 3, 6, 9, 12 and 15. The sum of the first 5 multiples of 3 is 45. But on the post, it said that the sum of the first 5 multiples of 3 is 30. Perhaps, the author should have enumerated the first 5 multiples of 3 as 0, 3, 6, 9 and 12.

Other than that, very information post!