Q: What are the factor combinations of the number 993,628?

 A:
Positive:   1 x 9936282 x 4968144 x 248407
Negative: -1 x -993628-2 x -496814-4 x -248407


How do I find the factor combinations of the number 993,628?

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 993,628, 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.

1 993,628
-1 -993,628

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 993,628.

Example:
1 x 993,628 = 993,628
and
-1 x -993,628 = 993,628
Notice both answers equal 993,628

With that explanation out of the way, let's continue. Next, we take the number 993,628 and divide it by 2:

993,628 ÷ 2 = 496,814

If the quotient is a whole number, then 2 and 496,814 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!

Here is what our table should look like at this step:

1 2 496,814 993,628
-1 -2 -496,814 -993,628

Now, we try dividing 993,628 by 3:

993,628 ÷ 3 = 331,209.3333

If the quotient is a whole number, then 3 and 331,209.3333 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 2 496,814 993,628
-1 -2 -496,814 -993,628

Let's try dividing by 4:

993,628 ÷ 4 = 248,407

If the quotient is a whole number, then 4 and 248,407 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!

Here is what our table should look like at this step:

1 2 4 248,407 496,814 993,628
-1 -2 -4 -248,407 -496,814 993,628
Keep dividing by the next highest number until you cannot divide anymore.

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

124248,407496,814993,628
-1-2-4-248,407-496,814-993,628

More Examples

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