Q: What are the factor combinations of the number 33,511?

 A:
Positive:   1 x 3351123 x 145731 x 108147 x 713
Negative: -1 x -33511-23 x -1457-31 x -1081-47 x -713


How do I find the factor combinations of the number 33,511?

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 33,511, 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 33,511
-1 -33,511

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 33,511.

Example:
1 x 33,511 = 33,511
and
-1 x -33,511 = 33,511
Notice both answers equal 33,511

With that explanation out of the way, let's continue. Next, we take the number 33,511 and divide it by 2:

33,511 ÷ 2 = 16,755.5

If the quotient is a whole number, then 2 and 16,755.5 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 33,511
-1 -33,511

Now, we try dividing 33,511 by 3:

33,511 ÷ 3 = 11,170.3333

If the quotient is a whole number, then 3 and 11,170.3333 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 33,511
-1 -33,511

Let's try dividing by 4:

33,511 ÷ 4 = 8,377.75

If the quotient is a whole number, then 4 and 8,377.75 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 33,511
-1 33,511
Keep dividing by the next highest number until you cannot divide anymore.

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

12331477131,0811,45733,511
-1-23-31-47-713-1,081-1,457-33,511

More Examples

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