Q: What are the factor combinations of the number 789,469?

 A:
Positive:   1 x 78946919 x 4155137 x 21337703 x 1123
Negative: -1 x -789469-19 x -41551-37 x -21337-703 x -1123


How do I find the factor combinations of the number 789,469?

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 789,469, 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.

1 789,469
-1 -789,469

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 789,469.

Example:
1 x 789,469 = 789,469
and
-1 x -789,469 = 789,469
Notice both answers equal 789,469

With that explanation out of the way, let's continue. Next, we take the number 789,469 and divide it by 2:

789,469 ÷ 2 = 394,734.5

If the quotient is a whole number, then 2 and 394,734.5 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:

1 789,469
-1 -789,469

Now, we try dividing 789,469 by 3:

789,469 ÷ 3 = 263,156.3333

If the quotient is a whole number, then 3 and 263,156.3333 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:

1 789,469
-1 -789,469

Let's try dividing by 4:

789,469 ÷ 4 = 197,367.25

If the quotient is a whole number, then 4 and 197,367.25 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:

1 789,469
-1 789,469
Keep dividing by the next highest number until you cannot divide anymore.

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

119377031,12321,33741,551789,469
-1-19-37-703-1,123-21,337-41,551-789,469

More Examples

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