Q: What are the factor combinations of the number 132,871?

 A:
Positive:   1 x 13287123 x 577753 x 2507109 x 1219
Negative: -1 x -132871-23 x -5777-53 x -2507-109 x -1219


How do I find the factor combinations of the number 132,871?

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 132,871, 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.

1 132,871
-1 -132,871

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 132,871.

Example:
1 x 132,871 = 132,871
and
-1 x -132,871 = 132,871
Notice both answers equal 132,871

With that explanation out of the way, let's continue. Next, we take the number 132,871 and divide it by 2:

132,871 ÷ 2 = 66,435.5

If the quotient is a whole number, then 2 and 66,435.5 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:

1 132,871
-1 -132,871

Now, we try dividing 132,871 by 3:

132,871 ÷ 3 = 44,290.3333

If the quotient is a whole number, then 3 and 44,290.3333 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:

1 132,871
-1 -132,871

Let's try dividing by 4:

132,871 ÷ 4 = 33,217.75

If the quotient is a whole number, then 4 and 33,217.75 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:

1 132,871
-1 132,871
Keep dividing by the next highest number until you cannot divide anymore.

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

123531091,2192,5075,777132,871
-1-23-53-109-1,219-2,507-5,777-132,871

More Examples

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