Q: What are the factor combinations of the number 160,115?

 A:
Positive:   1 x 1601155 x 3202331 x 5165155 x 1033
Negative: -1 x -160115-5 x -32023-31 x -5165-155 x -1033


How do I find the factor combinations of the number 160,115?

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 160,115, 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.

1 160,115
-1 -160,115

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 160,115.

Example:
1 x 160,115 = 160,115
and
-1 x -160,115 = 160,115
Notice both answers equal 160,115

With that explanation out of the way, let's continue. Next, we take the number 160,115 and divide it by 2:

160,115 ÷ 2 = 80,057.5

If the quotient is a whole number, then 2 and 80,057.5 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:

1 160,115
-1 -160,115

Now, we try dividing 160,115 by 3:

160,115 ÷ 3 = 53,371.6667

If the quotient is a whole number, then 3 and 53,371.6667 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:

1 160,115
-1 -160,115

Let's try dividing by 4:

160,115 ÷ 4 = 40,028.75

If the quotient is a whole number, then 4 and 40,028.75 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:

1 160,115
-1 160,115
Keep dividing by the next highest number until you cannot divide anymore.

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

15311551,0335,16532,023160,115
-1-5-31-155-1,033-5,165-32,023-160,115

More Examples

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