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![Juan Bermudez](https://secure.gravatar.com/avatar/b1e50a173d76b4b80ab53436716cd654?s=96&d=https%3A%2F%2Fecs-static.teamtreehouse.com%2Fassets%2Fcontent%2Fdefault_avatar-445fbbabfc8dc9188fb5967fe43322ee0c3e0dd1e10f378bf8343784af5a13eb.webp&r=pg)
Juan Bermudez
2,180 PointsWhy did Amit use the remainder operator?
Amit used the remainder operator % to find out if a number was divisible by 3
He wrote
i % 3 == 0 I don't really understand why he used %
2 Answers
![Nathan Tallack](https://uploads.teamtreehouse.com/production/profile-photos/4003052/micro_NathanBusinessEditedSquare.jpg)
Nathan Tallack
22,160 PointsIf a number was divisible by 3 (exactly divisible with no remainder) then num % 3 would always return 0.
Consider the following:
3 % 3 = 0
4 % 3 = 1
5 % 3 = 2
6 % 3 = 0
:)
![Chuck Kerns](https://secure.gravatar.com/avatar/f838c728f6814a8dba6762765a28ea2a?s=96&d=https%3A%2F%2Fecs-static.teamtreehouse.com%2Fassets%2Fcontent%2Fdefault_avatar-445fbbabfc8dc9188fb5967fe43322ee0c3e0dd1e10f378bf8343784af5a13eb.webp&r=pg)
Chuck Kerns
2,136 PointsI thought the same thing. I kept trying to use / and actually divide.
Juan Bermudez
2,180 PointsJuan Bermudez
2,180 PointsI understand now, thank you Sir!