Q: What are the factor combinations of the number 322,915?

 A:
Positive:   1 x 3229155 x 6458317 x 1899529 x 1113585 x 3799131 x 2465145 x 2227493 x 655
Negative: -1 x -322915-5 x -64583-17 x -18995-29 x -11135-85 x -3799-131 x -2465-145 x -2227-493 x -655


How do I find the factor combinations of the number 322,915?

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 322,915, 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.

1 322,915
-1 -322,915

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 322,915.

Example:
1 x 322,915 = 322,915
and
-1 x -322,915 = 322,915
Notice both answers equal 322,915

With that explanation out of the way, let's continue. Next, we take the number 322,915 and divide it by 2:

322,915 ÷ 2 = 161,457.5

If the quotient is a whole number, then 2 and 161,457.5 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:

1 322,915
-1 -322,915

Now, we try dividing 322,915 by 3:

322,915 ÷ 3 = 107,638.3333

If the quotient is a whole number, then 3 and 107,638.3333 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:

1 322,915
-1 -322,915

Let's try dividing by 4:

322,915 ÷ 4 = 80,728.75

If the quotient is a whole number, then 4 and 80,728.75 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:

1 322,915
-1 322,915
Keep dividing by the next highest number until you cannot divide anymore.

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

151729851311454936552,2272,4653,79911,13518,99564,583322,915
-1-5-17-29-85-131-145-493-655-2,227-2,465-3,799-11,135-18,995-64,583-322,915

More Examples

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