Q: What are the factor combinations of the number 249,599?

 A:
Positive:   1 x 2495997 x 35657181 x 1379197 x 1267
Negative: -1 x -249599-7 x -35657-181 x -1379-197 x -1267


How do I find the factor combinations of the number 249,599?

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 249,599, 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.

1 249,599
-1 -249,599

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 249,599.

Example:
1 x 249,599 = 249,599
and
-1 x -249,599 = 249,599
Notice both answers equal 249,599

With that explanation out of the way, let's continue. Next, we take the number 249,599 and divide it by 2:

249,599 ÷ 2 = 124,799.5

If the quotient is a whole number, then 2 and 124,799.5 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:

1 249,599
-1 -249,599

Now, we try dividing 249,599 by 3:

249,599 ÷ 3 = 83,199.6667

If the quotient is a whole number, then 3 and 83,199.6667 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:

1 249,599
-1 -249,599

Let's try dividing by 4:

249,599 ÷ 4 = 62,399.75

If the quotient is a whole number, then 4 and 62,399.75 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:

1 249,599
-1 249,599
Keep dividing by the next highest number until you cannot divide anymore.

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

171811971,2671,37935,657249,599
-1-7-181-197-1,267-1,379-35,657-249,599

More Examples

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