Q: What are the factor combinations of the number 112,811?

 A:
Positive:   1 x 11281197 x 1163
Negative: -1 x -112811-97 x -1163


How do I find the factor combinations of the number 112,811?

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 112,811, 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.

1 112,811
-1 -112,811

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 112,811.

Example:
1 x 112,811 = 112,811
and
-1 x -112,811 = 112,811
Notice both answers equal 112,811

With that explanation out of the way, let's continue. Next, we take the number 112,811 and divide it by 2:

112,811 ÷ 2 = 56,405.5

If the quotient is a whole number, then 2 and 56,405.5 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:

1 112,811
-1 -112,811

Now, we try dividing 112,811 by 3:

112,811 ÷ 3 = 37,603.6667

If the quotient is a whole number, then 3 and 37,603.6667 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:

1 112,811
-1 -112,811

Let's try dividing by 4:

112,811 ÷ 4 = 28,202.75

If the quotient is a whole number, then 4 and 28,202.75 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:

1 112,811
-1 112,811
Keep dividing by the next highest number until you cannot divide anymore.

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

1971,163112,811
-1-97-1,163-112,811

More Examples

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