Q: What are the factor combinations of the number 918,499?

 A:
Positive:   1 x 91849931 x 29629
Negative: -1 x -918499-31 x -29629


How do I find the factor combinations of the number 918,499?

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 918,499, 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.

1 918,499
-1 -918,499

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 918,499.

Example:
1 x 918,499 = 918,499
and
-1 x -918,499 = 918,499
Notice both answers equal 918,499

With that explanation out of the way, let's continue. Next, we take the number 918,499 and divide it by 2:

918,499 ÷ 2 = 459,249.5

If the quotient is a whole number, then 2 and 459,249.5 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:

1 918,499
-1 -918,499

Now, we try dividing 918,499 by 3:

918,499 ÷ 3 = 306,166.3333

If the quotient is a whole number, then 3 and 306,166.3333 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:

1 918,499
-1 -918,499

Let's try dividing by 4:

918,499 ÷ 4 = 229,624.75

If the quotient is a whole number, then 4 and 229,624.75 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:

1 918,499
-1 918,499
Keep dividing by the next highest number until you cannot divide anymore.

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

13129,629918,499
-1-31-29,629-918,499

More Examples

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