Q: What are the factor combinations of the number 498,641?

 A:
Positive:   1 x 49864111 x 4533113 x 38357121 x 4121143 x 3487317 x 1573
Negative: -1 x -498641-11 x -45331-13 x -38357-121 x -4121-143 x -3487-317 x -1573


How do I find the factor combinations of the number 498,641?

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 498,641, 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.

1 498,641
-1 -498,641

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 498,641.

Example:
1 x 498,641 = 498,641
and
-1 x -498,641 = 498,641
Notice both answers equal 498,641

With that explanation out of the way, let's continue. Next, we take the number 498,641 and divide it by 2:

498,641 ÷ 2 = 249,320.5

If the quotient is a whole number, then 2 and 249,320.5 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:

1 498,641
-1 -498,641

Now, we try dividing 498,641 by 3:

498,641 ÷ 3 = 166,213.6667

If the quotient is a whole number, then 3 and 166,213.6667 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:

1 498,641
-1 -498,641

Let's try dividing by 4:

498,641 ÷ 4 = 124,660.25

If the quotient is a whole number, then 4 and 124,660.25 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:

1 498,641
-1 498,641
Keep dividing by the next highest number until you cannot divide anymore.

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

111131211433171,5733,4874,12138,35745,331498,641
-1-11-13-121-143-317-1,573-3,487-4,121-38,357-45,331-498,641

More Examples

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