What is 70 mod 3?

How to compute 70 mod 3?

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:

$\mathrm{Remainder}=N-(M\times \lfloor \frac{N}{M}\rfloor )$

(where N is the dividend, M is the divisor and $\lfloor \frac{N}{M}\rfloor$ represents the integer part of the quotient)

1. 70 / 3 = 23.333333333333
2. ⌊23.333333333333⌋ = 23 (We only keep the integer part)
3. 3 × 23 = 69
4. 70 - 69 = 1 (Subtracting gives us the remainder)

In short: 70 − (3 × ⌊70 / 3⌋) = 1

Is 70 divisible by 3?

A number is said to be divisible by another number, if the remainder of the division is zero.

Given that the result of 70 mod 3 is 1, this indicates that dividing 70 by 3 leaves a remainder of 1. Therefore, no, since the remainder isn't zero, 70 is not divisible by 3.