Integer CS Thinking Example 3

Follow the full solution, then compare it with the other examples linked below.

Example 3

easy
What are the results of: (a) 25 MOD 7, (b) 100 DIV 3, (c) 8 MOD 2?

Solution

  1. 1
    Step 1: (a) 25 ÷ 7 = 3 remainder 4, so 25 MOD 7 = 4. (b) 100 ÷ 3 = 33 remainder 1, so 100 DIV 3 = 33.
  2. 2
    Step 2: (c) 8 ÷ 2 = 4 remainder 0, so 8 MOD 2 = 0 (8 is even).

Answer

(a) 4, (b) 33, (c) 0.
MOD = 0 tells us a number is evenly divisible. This is commonly used to check if a number is even (n MOD 2 == 0) or to cycle through values.

About Integer

A data type that represents whole numbers (positive, negative, or zero) without decimal points. Integers are stored exactly in memory and support arithmetic operations like addition, subtraction, multiplication, and integer division.

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