Q: What are the factor combinations of the number 540,199?

 A:
Positive:   1 x 54019911 x 49109
Negative: -1 x -540199-11 x -49109


How do I find the factor combinations of the number 540,199?

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 540,199, 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.

1 540,199
-1 -540,199

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 540,199.

Example:
1 x 540,199 = 540,199
and
-1 x -540,199 = 540,199
Notice both answers equal 540,199

With that explanation out of the way, let's continue. Next, we take the number 540,199 and divide it by 2:

540,199 ÷ 2 = 270,099.5

If the quotient is a whole number, then 2 and 270,099.5 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:

1 540,199
-1 -540,199

Now, we try dividing 540,199 by 3:

540,199 ÷ 3 = 180,066.3333

If the quotient is a whole number, then 3 and 180,066.3333 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:

1 540,199
-1 -540,199

Let's try dividing by 4:

540,199 ÷ 4 = 135,049.75

If the quotient is a whole number, then 4 and 135,049.75 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:

1 540,199
-1 540,199
Keep dividing by the next highest number until you cannot divide anymore.

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

11149,109540,199
-1-11-49,109-540,199

More Examples

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