What are the factor pairs of 18?
Understand the Problem
The question is asking for the factor pairs of the number 18. Factor pairs are two numbers that, when multiplied together, equal the given number. We will find pairs of integers that satisfy this condition for the number 18.
Answer
The factor pairs of 18 are $(1, 18)$, $(2, 9)$, and $(3, 6)$.
Answer for screen readers
The factor pairs of the number 18 are:
- (1, 18)
- (2, 9)
- (3, 6)
Steps to Solve
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Identify the pairs of factors Start by listing the positive integers that can be multiplied together to equal 18.
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Find pairs of factors Begin by dividing 18 by each integer starting from 1 up to 18. If the division results in an integer, then both the divisor and the quotient are factor pairs.
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List out the factor pairs The factor pairs found will be (1, 18), (2, 9), and (3, 6). Check that when you multiply these pairs, they equal 18.
The factor pairs of the number 18 are:
- (1, 18)
- (2, 9)
- (3, 6)
More Information
Factor pairs are useful in various areas of math, particularly in simplifying fractions and solving equations. They help in understanding the relationships between numbers.
Tips
- Forgetting to include both the positive and negative factor pairs. Always remember that each positive pair has a corresponding negative pair, e.g., (-1, -18), (-2, -9), (-3, -6).
- Not checking if the pairs multiply correctly to give the original number.
