Q: What are the factor combinations of the number 499,193?

 A:
Positive:   1 x 49919331 x 16103
Negative: -1 x -499193-31 x -16103


How do I find the factor combinations of the number 499,193?

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 499,193, 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.

1 499,193
-1 -499,193

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 499,193.

Example:
1 x 499,193 = 499,193
and
-1 x -499,193 = 499,193
Notice both answers equal 499,193

With that explanation out of the way, let's continue. Next, we take the number 499,193 and divide it by 2:

499,193 ÷ 2 = 249,596.5

If the quotient is a whole number, then 2 and 249,596.5 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:

1 499,193
-1 -499,193

Now, we try dividing 499,193 by 3:

499,193 ÷ 3 = 166,397.6667

If the quotient is a whole number, then 3 and 166,397.6667 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:

1 499,193
-1 -499,193

Let's try dividing by 4:

499,193 ÷ 4 = 124,798.25

If the quotient is a whole number, then 4 and 124,798.25 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:

1 499,193
-1 499,193
Keep dividing by the next highest number until you cannot divide anymore.

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

13116,103499,193
-1-31-16,103-499,193

More Examples

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