Q: What are the factor combinations of the number 765,947?

 A:
Positive:   1 x 7659477 x 10942113 x 5891919 x 4031391 x 8417133 x 5759247 x 3101443 x 1729
Negative: -1 x -765947-7 x -109421-13 x -58919-19 x -40313-91 x -8417-133 x -5759-247 x -3101-443 x -1729


How do I find the factor combinations of the number 765,947?

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 765,947, 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.

1 765,947
-1 -765,947

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 765,947.

Example:
1 x 765,947 = 765,947
and
-1 x -765,947 = 765,947
Notice both answers equal 765,947

With that explanation out of the way, let's continue. Next, we take the number 765,947 and divide it by 2:

765,947 ÷ 2 = 382,973.5

If the quotient is a whole number, then 2 and 382,973.5 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:

1 765,947
-1 -765,947

Now, we try dividing 765,947 by 3:

765,947 ÷ 3 = 255,315.6667

If the quotient is a whole number, then 3 and 255,315.6667 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:

1 765,947
-1 -765,947

Let's try dividing by 4:

765,947 ÷ 4 = 191,486.75

If the quotient is a whole number, then 4 and 191,486.75 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:

1 765,947
-1 765,947
Keep dividing by the next highest number until you cannot divide anymore.

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

171319911332474431,7293,1015,7598,41740,31358,919109,421765,947
-1-7-13-19-91-133-247-443-1,729-3,101-5,759-8,417-40,313-58,919-109,421-765,947

More Examples

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