Q: What are the factor combinations of the number 388,037?

 A:
Positive:   1 x 38803713 x 2984919 x 20423247 x 1571
Negative: -1 x -388037-13 x -29849-19 x -20423-247 x -1571


How do I find the factor combinations of the number 388,037?

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 388,037, 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.

1 388,037
-1 -388,037

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 388,037.

Example:
1 x 388,037 = 388,037
and
-1 x -388,037 = 388,037
Notice both answers equal 388,037

With that explanation out of the way, let's continue. Next, we take the number 388,037 and divide it by 2:

388,037 ÷ 2 = 194,018.5

If the quotient is a whole number, then 2 and 194,018.5 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:

1 388,037
-1 -388,037

Now, we try dividing 388,037 by 3:

388,037 ÷ 3 = 129,345.6667

If the quotient is a whole number, then 3 and 129,345.6667 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:

1 388,037
-1 -388,037

Let's try dividing by 4:

388,037 ÷ 4 = 97,009.25

If the quotient is a whole number, then 4 and 97,009.25 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:

1 388,037
-1 388,037
Keep dividing by the next highest number until you cannot divide anymore.

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

113192471,57120,42329,849388,037
-1-13-19-247-1,571-20,423-29,849-388,037

More Examples

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