Q: What are the factor combinations of the number 386,192?

 A:
Positive:   1 x 3861922 x 1930964 x 965488 x 4827416 x 24137
Negative: -1 x -386192-2 x -193096-4 x -96548-8 x -48274-16 x -24137


How do I find the factor combinations of the number 386,192?

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 386,192, 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.

1 386,192
-1 -386,192

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 386,192.

Example:
1 x 386,192 = 386,192
and
-1 x -386,192 = 386,192
Notice both answers equal 386,192

With that explanation out of the way, let's continue. Next, we take the number 386,192 and divide it by 2:

386,192 ÷ 2 = 193,096

If the quotient is a whole number, then 2 and 193,096 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!

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

1 2 193,096 386,192
-1 -2 -193,096 -386,192

Now, we try dividing 386,192 by 3:

386,192 ÷ 3 = 128,730.6667

If the quotient is a whole number, then 3 and 128,730.6667 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 2 193,096 386,192
-1 -2 -193,096 -386,192

Let's try dividing by 4:

386,192 ÷ 4 = 96,548

If the quotient is a whole number, then 4 and 96,548 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!

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

1 2 4 96,548 193,096 386,192
-1 -2 -4 -96,548 -193,096 386,192
Keep dividing by the next highest number until you cannot divide anymore.

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

12481624,13748,27496,548193,096386,192
-1-2-4-8-16-24,137-48,274-96,548-193,096-386,192

More Examples

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