Q: What are the factor combinations of the number 84,790,392?

 A:
Positive:   1 x 847903922 x 423951963 x 282634644 x 211975986 x 141317328 x 1059879912 x 706586624 x 3532933
Negative: -1 x -84790392-2 x -42395196-3 x -28263464-4 x -21197598-6 x -14131732-8 x -10598799-12 x -7065866-24 x -3532933


How do I find the factor combinations of the number 84,790,392?

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 84,790,392, 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 84,790,392
-1 -84,790,392

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 84,790,392.

Example:
1 x 84,790,392 = 84,790,392
and
-1 x -84,790,392 = 84,790,392
Notice both answers equal 84,790,392

With that explanation out of the way, let's continue. Next, we take the number 84,790,392 and divide it by 2:

84,790,392 ÷ 2 = 42,395,196

If the quotient is a whole number, then 2 and 42,395,196 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 42,395,196 84,790,392
-1 -2 -42,395,196 -84,790,392

Now, we try dividing 84,790,392 by 3:

84,790,392 ÷ 3 = 28,263,464

If the quotient is a whole number, then 3 and 28,263,464 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 28,263,464 42,395,196 84,790,392
-1 -2 -3 -28,263,464 -42,395,196 -84,790,392

Let's try dividing by 4:

84,790,392 ÷ 4 = 21,197,598

If the quotient is a whole number, then 4 and 21,197,598 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 21,197,598 28,263,464 42,395,196 84,790,392
-1 -2 -3 -4 -21,197,598 -28,263,464 -42,395,196 84,790,392
Keep dividing by the next highest number until you cannot divide anymore.

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

12346812243,532,9337,065,86610,598,79914,131,73221,197,59828,263,46442,395,19684,790,392
-1-2-3-4-6-8-12-24-3,532,933-7,065,866-10,598,799-14,131,732-21,197,598-28,263,464-42,395,196-84,790,392

More Examples

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