Q: What are the factor combinations of the number 298,103?

 A:
Positive:   1 x 29810313 x 2293123 x 12961299 x 997
Negative: -1 x -298103-13 x -22931-23 x -12961-299 x -997


How do I find the factor combinations of the number 298,103?

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 298,103, 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.

1 298,103
-1 -298,103

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 298,103.

Example:
1 x 298,103 = 298,103
and
-1 x -298,103 = 298,103
Notice both answers equal 298,103

With that explanation out of the way, let's continue. Next, we take the number 298,103 and divide it by 2:

298,103 ÷ 2 = 149,051.5

If the quotient is a whole number, then 2 and 149,051.5 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:

1 298,103
-1 -298,103

Now, we try dividing 298,103 by 3:

298,103 ÷ 3 = 99,367.6667

If the quotient is a whole number, then 3 and 99,367.6667 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:

1 298,103
-1 -298,103

Let's try dividing by 4:

298,103 ÷ 4 = 74,525.75

If the quotient is a whole number, then 4 and 74,525.75 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:

1 298,103
-1 298,103
Keep dividing by the next highest number until you cannot divide anymore.

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

1132329999712,96122,931298,103
-1-13-23-299-997-12,961-22,931-298,103

More Examples

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