Perform the modular arithmetic. (13 − 6) mod 6

  1

Step-by-step explanation:

You can do this two ways:

  (13 -6) mod 6 = 7 mod 6 = 1

  (13 -6) mod 6 = (13 mod 6) -(6 mod 6) = 1 - 0 = 1

"mod 6" means you are interested in the remainder after division by 6. For some number n, it can be computed as ...

  n mod 6 = n - 6×Floor(n/6)