Q: What are the factor combinations of the number 172,852,735?

 A:
Positive:   1 x 1728527355 x 3457054711 x 1571388555 x 3142777121 x 1428535605 x 285707
Negative: -1 x -172852735-5 x -34570547-11 x -15713885-55 x -3142777-121 x -1428535-605 x -285707


How do I find the factor combinations of the number 172,852,735?

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 172,852,735, 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.

1 172,852,735
-1 -172,852,735

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 172,852,735.

Example:
1 x 172,852,735 = 172,852,735
and
-1 x -172,852,735 = 172,852,735
Notice both answers equal 172,852,735

With that explanation out of the way, let's continue. Next, we take the number 172,852,735 and divide it by 2:

172,852,735 ÷ 2 = 86,426,367.5

If the quotient is a whole number, then 2 and 86,426,367.5 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:

1 172,852,735
-1 -172,852,735

Now, we try dividing 172,852,735 by 3:

172,852,735 ÷ 3 = 57,617,578.3333

If the quotient is a whole number, then 3 and 57,617,578.3333 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:

1 172,852,735
-1 -172,852,735

Let's try dividing by 4:

172,852,735 ÷ 4 = 43,213,183.75

If the quotient is a whole number, then 4 and 43,213,183.75 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:

1 172,852,735
-1 172,852,735
Keep dividing by the next highest number until you cannot divide anymore.

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

151155121605285,7071,428,5353,142,77715,713,88534,570,547172,852,735
-1-5-11-55-121-605-285,707-1,428,535-3,142,777-15,713,885-34,570,547-172,852,735

More Examples

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