Q: What are the factor combinations of the number 875,708?

 A:
Positive:   1 x 8757082 x 4378544 x 21892773 x 11996146 x 5998292 x 2999
Negative: -1 x -875708-2 x -437854-4 x -218927-73 x -11996-146 x -5998-292 x -2999


How do I find the factor combinations of the number 875,708?

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 875,708, 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.

1 875,708
-1 -875,708

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 875,708.

Example:
1 x 875,708 = 875,708
and
-1 x -875,708 = 875,708
Notice both answers equal 875,708

With that explanation out of the way, let's continue. Next, we take the number 875,708 and divide it by 2:

875,708 ÷ 2 = 437,854

If the quotient is a whole number, then 2 and 437,854 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!

Here is what our table should look like at this step:

1 2 437,854 875,708
-1 -2 -437,854 -875,708

Now, we try dividing 875,708 by 3:

875,708 ÷ 3 = 291,902.6667

If the quotient is a whole number, then 3 and 291,902.6667 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 2 437,854 875,708
-1 -2 -437,854 -875,708

Let's try dividing by 4:

875,708 ÷ 4 = 218,927

If the quotient is a whole number, then 4 and 218,927 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!

Here is what our table should look like at this step:

1 2 4 218,927 437,854 875,708
-1 -2 -4 -218,927 -437,854 875,708
Keep dividing by the next highest number until you cannot divide anymore.

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

124731462922,9995,99811,996218,927437,854875,708
-1-2-4-73-146-292-2,999-5,998-11,996-218,927-437,854-875,708

More Examples

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