Q: What are the factor combinations of the number 9,700,771?

 A:
Positive:   1 x 970077137 x 262183239 x 405891097 x 8843
Negative: -1 x -9700771-37 x -262183-239 x -40589-1097 x -8843


How do I find the factor combinations of the number 9,700,771?

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 9,700,771, 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 9,700,771
-1 -9,700,771

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 9,700,771.

Example:
1 x 9,700,771 = 9,700,771
and
-1 x -9,700,771 = 9,700,771
Notice both answers equal 9,700,771

With that explanation out of the way, let's continue. Next, we take the number 9,700,771 and divide it by 2:

9,700,771 ÷ 2 = 4,850,385.5

If the quotient is a whole number, then 2 and 4,850,385.5 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 9,700,771
-1 -9,700,771

Now, we try dividing 9,700,771 by 3:

9,700,771 ÷ 3 = 3,233,590.3333

If the quotient is a whole number, then 3 and 3,233,590.3333 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 9,700,771
-1 -9,700,771

Let's try dividing by 4:

9,700,771 ÷ 4 = 2,425,192.75

If the quotient is a whole number, then 4 and 2,425,192.75 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 9,700,771
-1 9,700,771
Keep dividing by the next highest number until you cannot divide anymore.

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

1372391,0978,84340,589262,1839,700,771
-1-37-239-1,097-8,843-40,589-262,183-9,700,771

More Examples

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