# Q: What are the factor combinations of the number 1,234,565?

A:
Positive:   1 x 12345655 x 246913
Negative: -1 x -1234565-5 x -246913

## How do I find the factor combinations of the number 1,234,565?

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 1,234,565, 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 1,234,565 -1 -1,234,565

#### 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 1,234,565.

Example:
1 x 1,234,565 = 1,234,565
and
-1 x -1,234,565 = 1,234,565

With that explanation out of the way, let's continue. Next, we take the number 1,234,565 and divide it by 2:

1,234,565 ÷ 2 = 617,282.5

If the quotient is a whole number, then 2 and 617,282.5 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 1,234,565 -1 -1,234,565

Now, we try dividing 1,234,565 by 3:

1,234,565 ÷ 3 = 411,521.6667

If the quotient is a whole number, then 3 and 411,521.6667 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 1,234,565 -1 -1,234,565

Let's try dividing by 4:

1,234,565 ÷ 4 = 308,641.25

If the quotient is a whole number, then 4 and 308,641.25 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 1,234,565 -1 1,234,565
Keep dividing by the next highest number until you cannot divide anymore.

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

 1 5 246,913 1,234,565 -1 -5 -246,913 -1,234,565

### More Examples

Here are some more numbers to try:

Try the factor calculator

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