Lesson eLearning

List all the positive factors of 18.

easy 1 mark Class 5 · Mathematics · Be My Multiple I Will Be Your Factor
Answer
1, 2, 3, 6, 9, 18

The correct answer is 1, 2, 3, 6, 9, 18 — Verify each product divides 18 without remainder.

Step-by-step solution

  1. First write down the prime factorization of 18: .
  2. List all possible products of the primes taking 0 or more of each: .
  3. Verify each product divides 18 without remainder.
Common mistake: Forgetting the prime 2, thus missing factor 2 and 6

Concept tested: Factors of a number

Published · How this solution was prepared and checked

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