Q: What are the factor combinations of the number 798,185?

 A:
Positive:   1 x 7981855 x 15963761 x 13085305 x 2617
Negative: -1 x -798185-5 x -159637-61 x -13085-305 x -2617


How do I find the factor combinations of the number 798,185?

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 798,185, 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.

1 798,185
-1 -798,185

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 798,185.

Example:
1 x 798,185 = 798,185
and
-1 x -798,185 = 798,185
Notice both answers equal 798,185

With that explanation out of the way, let's continue. Next, we take the number 798,185 and divide it by 2:

798,185 ÷ 2 = 399,092.5

If the quotient is a whole number, then 2 and 399,092.5 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:

1 798,185
-1 -798,185

Now, we try dividing 798,185 by 3:

798,185 ÷ 3 = 266,061.6667

If the quotient is a whole number, then 3 and 266,061.6667 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:

1 798,185
-1 -798,185

Let's try dividing by 4:

798,185 ÷ 4 = 199,546.25

If the quotient is a whole number, then 4 and 199,546.25 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:

1 798,185
-1 798,185
Keep dividing by the next highest number until you cannot divide anymore.

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

15613052,61713,085159,637798,185
-1-5-61-305-2,617-13,085-159,637-798,185

More Examples

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