What is 5 mod 81?
Often represented by the operator "mod", the modulo is a mathematical operation that gives the remainder of an integer division.
The result of 5 mod 81 is 5.
How to compute 5 mod 81?
The simplest approach is to use the "mod" operator (often denoted as "%
" in many programming languages), but you could do it manually in the following way:
(where N is the dividend, M is the divisor and represents the integer part of the quotient)
- 5 / 81 = 0.061728395061728
- ⌊0.061728395061728⌋ = 0 (We only keep the integer part)
- 81 × 0 = 0
- 5 - 0 = 5 (Subtracting gives us the remainder)
In short: 5 − (81 × ⌊5 / 81⌋) = 5
Is 5 divisible by 81?
A number is said to be divisible by another number, if the remainder of the division is zero.
Given that the result of 5 mod 81 is 5, this indicates that dividing 5 by 81 leaves a remainder of 5. Therefore, no, since the remainder isn't zero, 5 is not divisible by 81.