Q: What are the factor combinations of the number 90,923?

 A:
Positive:   1 x 909237 x 1298931 x 2933217 x 419
Negative: -1 x -90923-7 x -12989-31 x -2933-217 x -419


How do I find the factor combinations of the number 90,923?

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 90,923, 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 90,923
-1 -90,923

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 90,923.

Example:
1 x 90,923 = 90,923
and
-1 x -90,923 = 90,923
Notice both answers equal 90,923

With that explanation out of the way, let's continue. Next, we take the number 90,923 and divide it by 2:

90,923 ÷ 2 = 45,461.5

If the quotient is a whole number, then 2 and 45,461.5 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 90,923
-1 -90,923

Now, we try dividing 90,923 by 3:

90,923 ÷ 3 = 30,307.6667

If the quotient is a whole number, then 3 and 30,307.6667 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 90,923
-1 -90,923

Let's try dividing by 4:

90,923 ÷ 4 = 22,730.75

If the quotient is a whole number, then 4 and 22,730.75 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 90,923
-1 90,923
Keep dividing by the next highest number until you cannot divide anymore.

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

17312174192,93312,98990,923
-1-7-31-217-419-2,933-12,989-90,923

More Examples

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