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A whole number that divides exactly into another whole number is called a factor
of that other number.
So, 6 is a factor of 12 as it divides exactly into 12.
So, 2 is a factor of 12 as it divides exactly into 12.
Note:
If a number can be expressed as a product
of two whole numbers, then the
whole numbers are called factors of that number.
So, the factors of 12 are 1, 2, 3, 4, 6 and 12.
Example 17
List all the factors of 28.
Solution:
So, the factors of 28 are 1, 2, 4, 7, 14 and 28.
Note:
Example 18
Is 3 a factor 8?
Solution:
Example 19
Find all the factors of:
a. 8x
b. 5pq
c. 6p2
Solution:
Key Terms
factor
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