Q: What are the factor combinations of the number 112,871?

 A:
Positive:   1 x 11287111 x 1026131 x 3641331 x 341
Negative: -1 x -112871-11 x -10261-31 x -3641-331 x -341


How do I find the factor combinations of the number 112,871?

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 112,871, 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.

1 112,871
-1 -112,871

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 112,871.

Example:
1 x 112,871 = 112,871
and
-1 x -112,871 = 112,871
Notice both answers equal 112,871

With that explanation out of the way, let's continue. Next, we take the number 112,871 and divide it by 2:

112,871 ÷ 2 = 56,435.5

If the quotient is a whole number, then 2 and 56,435.5 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:

1 112,871
-1 -112,871

Now, we try dividing 112,871 by 3:

112,871 ÷ 3 = 37,623.6667

If the quotient is a whole number, then 3 and 37,623.6667 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:

1 112,871
-1 -112,871

Let's try dividing by 4:

112,871 ÷ 4 = 28,217.75

If the quotient is a whole number, then 4 and 28,217.75 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:

1 112,871
-1 112,871
Keep dividing by the next highest number until you cannot divide anymore.

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

111313313413,64110,261112,871
-1-11-31-331-341-3,641-10,261-112,871

More Examples

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