Q: What are the factor combinations of the number 121,596?

 A:
Positive:   1 x 1215962 x 607983 x 405324 x 303996 x 2026612 x 10133
Negative: -1 x -121596-2 x -60798-3 x -40532-4 x -30399-6 x -20266-12 x -10133


How do I find the factor combinations of the number 121,596?

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 121,596, 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.

1 121,596
-1 -121,596

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 121,596.

Example:
1 x 121,596 = 121,596
and
-1 x -121,596 = 121,596
Notice both answers equal 121,596

With that explanation out of the way, let's continue. Next, we take the number 121,596 and divide it by 2:

121,596 ÷ 2 = 60,798

If the quotient is a whole number, then 2 and 60,798 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 60,798 121,596
-1 -2 -60,798 -121,596

Now, we try dividing 121,596 by 3:

121,596 ÷ 3 = 40,532

If the quotient is a whole number, then 3 and 40,532 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 40,532 60,798 121,596
-1 -2 -3 -40,532 -60,798 -121,596

Let's try dividing by 4:

121,596 ÷ 4 = 30,399

If the quotient is a whole number, then 4 and 30,399 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 30,399 40,532 60,798 121,596
-1 -2 -3 -4 -30,399 -40,532 -60,798 121,596
Keep dividing by the next highest number until you cannot divide anymore.

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

123461210,13320,26630,39940,53260,798121,596
-1-2-3-4-6-12-10,133-20,266-30,399-40,532-60,798-121,596

More Examples

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