Q: What are the factor combinations of the number 298,747?

 A:
Positive:   1 x 29874723 x 1298931 x 9637419 x 713
Negative: -1 x -298747-23 x -12989-31 x -9637-419 x -713


How do I find the factor combinations of the number 298,747?

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 298,747, 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.

1 298,747
-1 -298,747

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 298,747.

Example:
1 x 298,747 = 298,747
and
-1 x -298,747 = 298,747
Notice both answers equal 298,747

With that explanation out of the way, let's continue. Next, we take the number 298,747 and divide it by 2:

298,747 ÷ 2 = 149,373.5

If the quotient is a whole number, then 2 and 149,373.5 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:

1 298,747
-1 -298,747

Now, we try dividing 298,747 by 3:

298,747 ÷ 3 = 99,582.3333

If the quotient is a whole number, then 3 and 99,582.3333 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:

1 298,747
-1 -298,747

Let's try dividing by 4:

298,747 ÷ 4 = 74,686.75

If the quotient is a whole number, then 4 and 74,686.75 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:

1 298,747
-1 298,747
Keep dividing by the next highest number until you cannot divide anymore.

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

123314197139,63712,989298,747
-1-23-31-419-713-9,637-12,989-298,747

More Examples

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