Q: What are the factor combinations of the number 112,217?

 A:
Positive:   1 x 1122177 x 1603117 x 660123 x 487941 x 2737119 x 943161 x 697287 x 391
Negative: -1 x -112217-7 x -16031-17 x -6601-23 x -4879-41 x -2737-119 x -943-161 x -697-287 x -391


How do I find the factor combinations of the number 112,217?

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 112,217, 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.

1 112,217
-1 -112,217

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 112,217.

Example:
1 x 112,217 = 112,217
and
-1 x -112,217 = 112,217
Notice both answers equal 112,217

With that explanation out of the way, let's continue. Next, we take the number 112,217 and divide it by 2:

112,217 ÷ 2 = 56,108.5

If the quotient is a whole number, then 2 and 56,108.5 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:

1 112,217
-1 -112,217

Now, we try dividing 112,217 by 3:

112,217 ÷ 3 = 37,405.6667

If the quotient is a whole number, then 3 and 37,405.6667 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:

1 112,217
-1 -112,217

Let's try dividing by 4:

112,217 ÷ 4 = 28,054.25

If the quotient is a whole number, then 4 and 28,054.25 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:

1 112,217
-1 112,217
Keep dividing by the next highest number until you cannot divide anymore.

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

171723411191612873916979432,7374,8796,60116,031112,217
-1-7-17-23-41-119-161-287-391-697-943-2,737-4,879-6,601-16,031-112,217

More Examples

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