Q: What are the factor combinations of the number 56,105?

 A:
Positive:   1 x 561055 x 112217 x 801535 x 160349 x 1145229 x 245
Negative: -1 x -56105-5 x -11221-7 x -8015-35 x -1603-49 x -1145-229 x -245


How do I find the factor combinations of the number 56,105?

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 56,105, 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 56,105
-1 -56,105

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 56,105.

Example:
1 x 56,105 = 56,105
and
-1 x -56,105 = 56,105
Notice both answers equal 56,105

With that explanation out of the way, let's continue. Next, we take the number 56,105 and divide it by 2:

56,105 ÷ 2 = 28,052.5

If the quotient is a whole number, then 2 and 28,052.5 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 56,105
-1 -56,105

Now, we try dividing 56,105 by 3:

56,105 ÷ 3 = 18,701.6667

If the quotient is a whole number, then 3 and 18,701.6667 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 56,105
-1 -56,105

Let's try dividing by 4:

56,105 ÷ 4 = 14,026.25

If the quotient is a whole number, then 4 and 14,026.25 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 56,105
-1 56,105
Keep dividing by the next highest number until you cannot divide anymore.

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

15735492292451,1451,6038,01511,22156,105
-1-5-7-35-49-229-245-1,145-1,603-8,015-11,221-56,105

More Examples

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