Q: What are the factor combinations of the number 766,987?

 A:
Positive:   1 x 76698713 x 5899941 x 18707533 x 1439
Negative: -1 x -766987-13 x -58999-41 x -18707-533 x -1439


How do I find the factor combinations of the number 766,987?

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 766,987, 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.

1 766,987
-1 -766,987

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 766,987.

Example:
1 x 766,987 = 766,987
and
-1 x -766,987 = 766,987
Notice both answers equal 766,987

With that explanation out of the way, let's continue. Next, we take the number 766,987 and divide it by 2:

766,987 ÷ 2 = 383,493.5

If the quotient is a whole number, then 2 and 383,493.5 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:

1 766,987
-1 -766,987

Now, we try dividing 766,987 by 3:

766,987 ÷ 3 = 255,662.3333

If the quotient is a whole number, then 3 and 255,662.3333 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:

1 766,987
-1 -766,987

Let's try dividing by 4:

766,987 ÷ 4 = 191,746.75

If the quotient is a whole number, then 4 and 191,746.75 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:

1 766,987
-1 766,987
Keep dividing by the next highest number until you cannot divide anymore.

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

113415331,43918,70758,999766,987
-1-13-41-533-1,439-18,707-58,999-766,987

More Examples

Here are some more numbers to try:

Try the factor calculator

Explore more about the number 766,987:


Ask a Question