Q: What are the factor combinations of the number 83,585,704?

 A:
Positive:   1 x 835857042 x 417928524 x 208964268 x 10448213139 x 601336278 x 300668556 x 1503341112 x 75167
Negative: -1 x -83585704-2 x -41792852-4 x -20896426-8 x -10448213-139 x -601336-278 x -300668-556 x -150334-1112 x -75167


How do I find the factor combinations of the number 83,585,704?

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 83,585,704, 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 83,585,704
-1 -83,585,704

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 83,585,704.

Example:
1 x 83,585,704 = 83,585,704
and
-1 x -83,585,704 = 83,585,704
Notice both answers equal 83,585,704

With that explanation out of the way, let's continue. Next, we take the number 83,585,704 and divide it by 2:

83,585,704 ÷ 2 = 41,792,852

If the quotient is a whole number, then 2 and 41,792,852 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 41,792,852 83,585,704
-1 -2 -41,792,852 -83,585,704

Now, we try dividing 83,585,704 by 3:

83,585,704 ÷ 3 = 27,861,901.3333

If the quotient is a whole number, then 3 and 27,861,901.3333 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 2 41,792,852 83,585,704
-1 -2 -41,792,852 -83,585,704

Let's try dividing by 4:

83,585,704 ÷ 4 = 20,896,426

If the quotient is a whole number, then 4 and 20,896,426 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 20,896,426 41,792,852 83,585,704
-1 -2 -4 -20,896,426 -41,792,852 83,585,704
Keep dividing by the next highest number until you cannot divide anymore.

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

12481392785561,11275,167150,334300,668601,33610,448,21320,896,42641,792,85283,585,704
-1-2-4-8-139-278-556-1,112-75,167-150,334-300,668-601,336-10,448,213-20,896,426-41,792,852-83,585,704

More Examples

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