Q: What are the factor combinations of the number 130,071?

 A:
Positive:   1 x 1300713 x 43357191 x 681227 x 573
Negative: -1 x -130071-3 x -43357-191 x -681-227 x -573


How do I find the factor combinations of the number 130,071?

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 130,071, 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.

1 130,071
-1 -130,071

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 130,071.

Example:
1 x 130,071 = 130,071
and
-1 x -130,071 = 130,071
Notice both answers equal 130,071

With that explanation out of the way, let's continue. Next, we take the number 130,071 and divide it by 2:

130,071 ÷ 2 = 65,035.5

If the quotient is a whole number, then 2 and 65,035.5 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:

1 130,071
-1 -130,071

Now, we try dividing 130,071 by 3:

130,071 ÷ 3 = 43,357

If the quotient is a whole number, then 3 and 43,357 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!

Here is what our table should look like at this step:

1 3 43,357 130,071
-1 -3 -43,357 -130,071

Let's try dividing by 4:

130,071 ÷ 4 = 32,517.75

If the quotient is a whole number, then 4 and 32,517.75 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 3 43,357 130,071
-1 -3 -43,357 130,071
Keep dividing by the next highest number until you cannot divide anymore.

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

1319122757368143,357130,071
-1-3-191-227-573-681-43,357-130,071

More Examples

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