Q: What are the factor combinations of the number 90,343?

 A:
Positive:   1 x 9034311 x 821343 x 2101191 x 473
Negative: -1 x -90343-11 x -8213-43 x -2101-191 x -473


How do I find the factor combinations of the number 90,343?

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 90,343, 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 90,343
-1 -90,343

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 90,343.

Example:
1 x 90,343 = 90,343
and
-1 x -90,343 = 90,343
Notice both answers equal 90,343

With that explanation out of the way, let's continue. Next, we take the number 90,343 and divide it by 2:

90,343 ÷ 2 = 45,171.5

If the quotient is a whole number, then 2 and 45,171.5 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 90,343
-1 -90,343

Now, we try dividing 90,343 by 3:

90,343 ÷ 3 = 30,114.3333

If the quotient is a whole number, then 3 and 30,114.3333 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 90,343
-1 -90,343

Let's try dividing by 4:

90,343 ÷ 4 = 22,585.75

If the quotient is a whole number, then 4 and 22,585.75 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 90,343
-1 90,343
Keep dividing by the next highest number until you cannot divide anymore.

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

111431914732,1018,21390,343
-1-11-43-191-473-2,101-8,213-90,343

More Examples

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