Factors of 387
So you need to find the factors of 387 do you? In this quick guide we'll describe what the factors of 387 are, how you find them and list out the factor pairs of 387 for you to prove the calculation works. Let's dive in!
Factors of 387 Definition
When we talk about the factors of 387, what we really mean is all of the positive and negative integers (whole numbers) that can be evenly divided into 387. If you were to take 387 and divide it by one of its factors, the answer would be another factor of 387.
Let's look at how to find all of the factors of 387 and list them out.
How to Find the Factors of 387
We just said that a factor is a number that can be divided equally into 387. So the way you find and list all of the factors of 387 is to go through every number up to and including 387 and check which numbers result in an even quotient (which means no decimal place).
Doing this by hand for large numbers can be time consuming, but it's relatively easy for a computer program to do it. Our calculator has worked this out for you. Here are all of the factors of 387:
- 387 ÷ 1 = 387
- 387 ÷ 3 = 129
- 387 ÷ 9 = 43
- 387 ÷ 43 = 9
- 387 ÷ 129 = 3
- 387 ÷ 387 = 1
All of these factors can be used to divide 387 by and get a whole number. The full list of positive factors for 387 are:
1, 3, 9, 43, 129, and 387
Negative Factors of 387
Technically, in math you can also have negative factors of 387. If you are looking to calculate the factors of a number for homework or a test, most often the teacher or exam will be looking for specifically positive numbers.
However, we can just flip the positive numbers into negatives and those negative numbers would also be factors of 387:
-1, -3, -9, -43, -129, and -387
How Many Factors of 387 Are There?
As we can see from the calculations above there are a total of 6 positive factors for 387 and 6 negative factors for 387 for a total of 12 factors for the number 387.
There are 6 positive factors of 387 and 6 negative factors of 387. Wht are there negative numbers that can be a factor of 387?
Factor Pairs of 387
A factor pair is a combination of two factors which can be multiplied together to equal 387. For 387, all of the possible factor pairs are listed below:
- 1 x 387 = 387
- 3 x 129 = 387
- 9 x 43 = 387
Just like before, we can also list out all of the negative factor pairs for 387:
- -1 x -387 = 387
- -3 x -129 = 387
- -9 x -43 = 387
Notice in the negative factor pairs that because we are multiplying a minus with a minus, the result is a positive number.
So there you have it. A complete guide to the factors of 387. You should now have the knowledge and skills to go out and calculate your own factors and factor pairs for any number you like.
Feel free to try the calculator below to check another number or, if you're feeling fancy, grab a pencil and paper and try and do it by hand. Just make sure to pick small numbers!
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