Multiples and Common Multiples for 4th Grade

A multiple of a number is any product of it with a whole number, and a common multiple is one that appears in two lists. The least common multiple is the first one they share. The examples below show how to find it, with practice problems.

DETAILED EXPLANATION

Multiples of a number are that number times 1, 2, 3, … (e.g., multiples of 4: 4, 8, 12, 16, …). A common multiple of two numbers is a multiple of both.

WORKED EXAMPLES WITH STEP BY STEP SOLUTIONS

Example 1

List the first 4 multiples of 6. What is a common multiple of 4 and 6?

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Solutions:

Step 1: Apply the concept from the lesson above.

Step 2: Carry out the operation or reasoning.

Answer: Multiples of 6: 6, 12, 18, 24. Common multiple: 12 (or 24).

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