What times what equals 27?
Understand the Problem
The question is asking us to find two numbers that, when multiplied together, equal 27. We will need to determine the factors of 27.
Answer
The pairs are (1, 27), (3, 9), (-1, -27), (-3, -9).
Answer for screen readers
Here are the pairs of numbers that multiply to give 27: 1 and 27, 3 and 9, -1 and -27, -3 and -9.
Steps to Solve
- Identify the factors of 27
We need to find pairs of numbers that, when multiplied together, give 27. The factors of 27 are 1, 3, 9, and 27.
- Pair the factors
List the pairs of factors:
- $1 imes 27 = 27$
- $3 imes 9 = 27$
- $-1 imes -27 = 27$ (negative factors)
- $-3 imes -9 = 27$ (negative factors)
Here are the pairs of numbers that multiply to give 27: 1 and 27, 3 and 9, -1 and -27, -3 and -9.
More Information
In mathematics, 27 is known as a perfect cube because it is equal to $3^3$. Understanding factor pairs is essential in solving multiplication and division problems.
Tips
A common mistake is to forget about negative factor pairs. Remember that multiplying two negative numbers results in a positive number.
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