Q: What are the factor combinations of the number 39,377?

 A:
Positive:   1 x 3937713 x 3029169 x 233
Negative: -1 x -39377-13 x -3029-169 x -233


How do I find the factor combinations of the number 39,377?

Unfortunately, there's not simple formula to identifying all of the factors of a number and it can be a tedious process when trying to identify the divisors of larger numbers. To find the factor combinations of the number 39,377, it is easier to work with a table - it's called factoring from the outside in.

Outside in Factoring

We start by creating a table and writing 1 on the left side and then the number we're trying to find the factors for on the right side in a table. Then, below that, write the numbers as a negative as well.

1 39,377
-1 -39,377

Why are the negative numbers included?

When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 39,377.

Example:
1 x 39,377 = 39,377
and
-1 x -39,377 = 39,377
Notice both answers equal 39,377

With that explanation out of the way, let's continue. Next, we take the number 39,377 and divide it by 2:

39,377 ÷ 2 = 19,688.5

If the quotient is a whole number, then 2 and 19,688.5 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.

Here is what our table should look like at this step:

1 39,377
-1 -39,377

Now, we try dividing 39,377 by 3:

39,377 ÷ 3 = 13,125.6667

If the quotient is a whole number, then 3 and 13,125.6667 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.

Here is what our table should look like at this step:

1 39,377
-1 -39,377

Let's try dividing by 4:

39,377 ÷ 4 = 9,844.25

If the quotient is a whole number, then 4 and 9,844.25 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.

Here is what our table should look like at this step:

1 39,377
-1 39,377
Keep dividing by the next highest number until you cannot divide anymore.

If you did it right, you will end up with this table:

1131692333,02939,377
-1-13-169-233-3,029-39,377

More Examples

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