Q: What are the factor combinations of the number 267,221?

 A:
Positive:   1 x 267221353 x 757
Negative: -1 x -267221-353 x -757


How do I find the factor combinations of the number 267,221?

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 267,221, 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.

1 267,221
-1 -267,221

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 267,221.

Example:
1 x 267,221 = 267,221
and
-1 x -267,221 = 267,221
Notice both answers equal 267,221

With that explanation out of the way, let's continue. Next, we take the number 267,221 and divide it by 2:

267,221 ÷ 2 = 133,610.5

If the quotient is a whole number, then 2 and 133,610.5 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:

1 267,221
-1 -267,221

Now, we try dividing 267,221 by 3:

267,221 ÷ 3 = 89,073.6667

If the quotient is a whole number, then 3 and 89,073.6667 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:

1 267,221
-1 -267,221

Let's try dividing by 4:

267,221 ÷ 4 = 66,805.25

If the quotient is a whole number, then 4 and 66,805.25 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:

1 267,221
-1 267,221
Keep dividing by the next highest number until you cannot divide anymore.

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

1353757267,221
-1-353-757-267,221

More Examples

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