Q: What are the factor combinations of the number 102,007?

 A:
Positive:   1 x 10200783 x 1229
Negative: -1 x -102007-83 x -1229


How do I find the factor combinations of the number 102,007?

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 102,007, 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.

1 102,007
-1 -102,007

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 102,007.

Example:
1 x 102,007 = 102,007
and
-1 x -102,007 = 102,007
Notice both answers equal 102,007

With that explanation out of the way, let's continue. Next, we take the number 102,007 and divide it by 2:

102,007 ÷ 2 = 51,003.5

If the quotient is a whole number, then 2 and 51,003.5 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:

1 102,007
-1 -102,007

Now, we try dividing 102,007 by 3:

102,007 ÷ 3 = 34,002.3333

If the quotient is a whole number, then 3 and 34,002.3333 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:

1 102,007
-1 -102,007

Let's try dividing by 4:

102,007 ÷ 4 = 25,501.75

If the quotient is a whole number, then 4 and 25,501.75 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:

1 102,007
-1 102,007
Keep dividing by the next highest number until you cannot divide anymore.

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

1831,229102,007
-1-83-1,229-102,007

More Examples

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