Q: What are the factor combinations of the number 297,913?

 A:
Positive:   1 x 2979137 x 4255911 x 2708353 x 562173 x 408177 x 3869371 x 803511 x 583
Negative: -1 x -297913-7 x -42559-11 x -27083-53 x -5621-73 x -4081-77 x -3869-371 x -803-511 x -583


How do I find the factor combinations of the number 297,913?

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 297,913, 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.

1 297,913
-1 -297,913

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 297,913.

Example:
1 x 297,913 = 297,913
and
-1 x -297,913 = 297,913
Notice both answers equal 297,913

With that explanation out of the way, let's continue. Next, we take the number 297,913 and divide it by 2:

297,913 ÷ 2 = 148,956.5

If the quotient is a whole number, then 2 and 148,956.5 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:

1 297,913
-1 -297,913

Now, we try dividing 297,913 by 3:

297,913 ÷ 3 = 99,304.3333

If the quotient is a whole number, then 3 and 99,304.3333 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:

1 297,913
-1 -297,913

Let's try dividing by 4:

297,913 ÷ 4 = 74,478.25

If the quotient is a whole number, then 4 and 74,478.25 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:

1 297,913
-1 297,913
Keep dividing by the next highest number until you cannot divide anymore.

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

17115373773715115838033,8694,0815,62127,08342,559297,913
-1-7-11-53-73-77-371-511-583-803-3,869-4,081-5,621-27,083-42,559-297,913

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