Q: What are the factor combinations of the number 807,103?

 A:
Positive:   1 x 80710311 x 73373239 x 3377307 x 2629
Negative: -1 x -807103-11 x -73373-239 x -3377-307 x -2629


How do I find the factor combinations of the number 807,103?

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 807,103, 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.

1 807,103
-1 -807,103

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 807,103.

Example:
1 x 807,103 = 807,103
and
-1 x -807,103 = 807,103
Notice both answers equal 807,103

With that explanation out of the way, let's continue. Next, we take the number 807,103 and divide it by 2:

807,103 ÷ 2 = 403,551.5

If the quotient is a whole number, then 2 and 403,551.5 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:

1 807,103
-1 -807,103

Now, we try dividing 807,103 by 3:

807,103 ÷ 3 = 269,034.3333

If the quotient is a whole number, then 3 and 269,034.3333 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:

1 807,103
-1 -807,103

Let's try dividing by 4:

807,103 ÷ 4 = 201,775.75

If the quotient is a whole number, then 4 and 201,775.75 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:

1 807,103
-1 807,103
Keep dividing by the next highest number until you cannot divide anymore.

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

1112393072,6293,37773,373807,103
-1-11-239-307-2,629-3,377-73,373-807,103

More Examples

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