Q: What are the factor combinations of the number 120,464,231?

 A:
Positive:   1 x 12046423129 x 4153939193 x 6241675597 x 21523
Negative: -1 x -120464231-29 x -4153939-193 x -624167-5597 x -21523


How do I find the factor combinations of the number 120,464,231?

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 120,464,231, 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.

1 120,464,231
-1 -120,464,231

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 120,464,231.

Example:
1 x 120,464,231 = 120,464,231
and
-1 x -120,464,231 = 120,464,231
Notice both answers equal 120,464,231

With that explanation out of the way, let's continue. Next, we take the number 120,464,231 and divide it by 2:

120,464,231 ÷ 2 = 60,232,115.5

If the quotient is a whole number, then 2 and 60,232,115.5 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:

1 120,464,231
-1 -120,464,231

Now, we try dividing 120,464,231 by 3:

120,464,231 ÷ 3 = 40,154,743.6667

If the quotient is a whole number, then 3 and 40,154,743.6667 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:

1 120,464,231
-1 -120,464,231

Let's try dividing by 4:

120,464,231 ÷ 4 = 30,116,057.75

If the quotient is a whole number, then 4 and 30,116,057.75 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:

1 120,464,231
-1 120,464,231
Keep dividing by the next highest number until you cannot divide anymore.

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

1291935,59721,523624,1674,153,939120,464,231
-1-29-193-5,597-21,523-624,167-4,153,939-120,464,231

More Examples

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