Q: What are the factor combinations of the number 201,320,337?

 A:
Positive:   1 x 2013203373 x 67106779167 x 1205511389 x 517533501 x 4018371033 x 1948891167 x 1725113099 x 64963
Negative: -1 x -201320337-3 x -67106779-167 x -1205511-389 x -517533-501 x -401837-1033 x -194889-1167 x -172511-3099 x -64963


How do I find the factor combinations of the number 201,320,337?

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 201,320,337, 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.

1 201,320,337
-1 -201,320,337

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 201,320,337.

Example:
1 x 201,320,337 = 201,320,337
and
-1 x -201,320,337 = 201,320,337
Notice both answers equal 201,320,337

With that explanation out of the way, let's continue. Next, we take the number 201,320,337 and divide it by 2:

201,320,337 ÷ 2 = 100,660,168.5

If the quotient is a whole number, then 2 and 100,660,168.5 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:

1 201,320,337
-1 -201,320,337

Now, we try dividing 201,320,337 by 3:

201,320,337 ÷ 3 = 67,106,779

If the quotient is a whole number, then 3 and 67,106,779 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 3 67,106,779 201,320,337
-1 -3 -67,106,779 -201,320,337

Let's try dividing by 4:

201,320,337 ÷ 4 = 50,330,084.25

If the quotient is a whole number, then 4 and 50,330,084.25 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 3 67,106,779 201,320,337
-1 -3 -67,106,779 201,320,337
Keep dividing by the next highest number until you cannot divide anymore.

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

131673895011,0331,1673,09964,963172,511194,889401,837517,5331,205,51167,106,779201,320,337
-1-3-167-389-501-1,033-1,167-3,099-64,963-172,511-194,889-401,837-517,533-1,205,511-67,106,779-201,320,337

More Examples

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