Q: What are the factor combinations of the number 831,984?

 A:
Positive:   1 x 8319842 x 4159923 x 2773284 x 2079966 x 1386648 x 10399812 x 6933216 x 5199924 x 3466648 x 17333
Negative: -1 x -831984-2 x -415992-3 x -277328-4 x -207996-6 x -138664-8 x -103998-12 x -69332-16 x -51999-24 x -34666-48 x -17333


How do I find the factor combinations of the number 831,984?

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 831,984, 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.

1 831,984
-1 -831,984

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 831,984.

Example:
1 x 831,984 = 831,984
and
-1 x -831,984 = 831,984
Notice both answers equal 831,984

With that explanation out of the way, let's continue. Next, we take the number 831,984 and divide it by 2:

831,984 ÷ 2 = 415,992

If the quotient is a whole number, then 2 and 415,992 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 2 415,992 831,984
-1 -2 -415,992 -831,984

Now, we try dividing 831,984 by 3:

831,984 ÷ 3 = 277,328

If the quotient is a whole number, then 3 and 277,328 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 3 277,328 415,992 831,984
-1 -2 -3 -277,328 -415,992 -831,984

Let's try dividing by 4:

831,984 ÷ 4 = 207,996

If the quotient is a whole number, then 4 and 207,996 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 3 4 207,996 277,328 415,992 831,984
-1 -2 -3 -4 -207,996 -277,328 -415,992 831,984
Keep dividing by the next highest number until you cannot divide anymore.

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

1234681216244817,33334,66651,99969,332103,998138,664207,996277,328415,992831,984
-1-2-3-4-6-8-12-16-24-48-17,333-34,666-51,999-69,332-103,998-138,664-207,996-277,328-415,992-831,984

More Examples

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