Q: What are the factor combinations of the number 39,197?

 A:
Positive:   1 x 3919719 x 2063
Negative: -1 x -39197-19 x -2063


How do I find the factor combinations of the number 39,197?

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 39,197, 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 39,197
-1 -39,197

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 39,197.

Example:
1 x 39,197 = 39,197
and
-1 x -39,197 = 39,197
Notice both answers equal 39,197

With that explanation out of the way, let's continue. Next, we take the number 39,197 and divide it by 2:

39,197 ÷ 2 = 19,598.5

If the quotient is a whole number, then 2 and 19,598.5 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 39,197
-1 -39,197

Now, we try dividing 39,197 by 3:

39,197 ÷ 3 = 13,065.6667

If the quotient is a whole number, then 3 and 13,065.6667 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 39,197
-1 -39,197

Let's try dividing by 4:

39,197 ÷ 4 = 9,799.25

If the quotient is a whole number, then 4 and 9,799.25 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 39,197
-1 39,197
Keep dividing by the next highest number until you cannot divide anymore.

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

1192,06339,197
-1-19-2,063-39,197

More Examples

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