Step 1a

Factors of a number are the numbers that divide evenly into that number without leaving a remainder.

To find the common factors of 28 and 92, we need to determine the numbers that can divide both 28 and 92 without leaving a remainder. Here’s how we can do it:

List the factors of 28: The factors of 28 are 1, 2, 4, 7, 14, and 28.

List the factors of 92: The factors of 92 are 1, 2, 4, 23, 46, and 92.

Explanation: These are the factors of both numbers.

Step 1b

Compare the lists: Look for the numbers that appear in both lists of factors.
In this case, the numbers that are common to both lists are 1, 2, and 4.
These common numbers, 1, 2, and 4, are the common factors of 28 and 92 because they can divide both numbers without leaving a remainder.
Therefore, the common factors of 28 and 92 are 1, 2, and 4.

Explanation: We have identified that numbers 1, 2, and 4 are factors that are common to both of the given numbers 28 and 92.