Finding the remainder of a number

The remainder is the integer "left over" after dividing one integer by another to produce an integer quotient

In JavaScript(my favorite programming language) when you want to get the remainder of a certain operation you use the modulo(%) symbol.

Some examples of this operation would be:

21 % 5 = 1
24 % 5 = 4
25 % 5 = 0

In the first(1) example 5 fits 4 times inside 21 and has a remainder of 1. In the second example 5 fits 4 times in 24 and has a remainder of 4. Finally, in the last example five fits 5 times inside 25 and has no remainder, thus the result is 0.

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