Q: What are the factor combinations of the number 112,805?

 A:
Positive:   1 x 1128055 x 225617 x 1611511 x 1025535 x 322355 x 205177 x 1465293 x 385
Negative: -1 x -112805-5 x -22561-7 x -16115-11 x -10255-35 x -3223-55 x -2051-77 x -1465-293 x -385


How do I find the factor combinations of the number 112,805?

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 112,805, 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.

1 112,805
-1 -112,805

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 112,805.

Example:
1 x 112,805 = 112,805
and
-1 x -112,805 = 112,805
Notice both answers equal 112,805

With that explanation out of the way, let's continue. Next, we take the number 112,805 and divide it by 2:

112,805 ÷ 2 = 56,402.5

If the quotient is a whole number, then 2 and 56,402.5 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:

1 112,805
-1 -112,805

Now, we try dividing 112,805 by 3:

112,805 ÷ 3 = 37,601.6667

If the quotient is a whole number, then 3 and 37,601.6667 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:

1 112,805
-1 -112,805

Let's try dividing by 4:

112,805 ÷ 4 = 28,201.25

If the quotient is a whole number, then 4 and 28,201.25 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:

1 112,805
-1 112,805
Keep dividing by the next highest number until you cannot divide anymore.

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

157113555772933851,4652,0513,22310,25516,11522,561112,805
-1-5-7-11-35-55-77-293-385-1,465-2,051-3,223-10,255-16,115-22,561-112,805

More Examples

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