Q: What are the factor combinations of the number 284,315?

 A:
Positive:   1 x 2843155 x 56863101 x 2815505 x 563
Negative: -1 x -284315-5 x -56863-101 x -2815-505 x -563


How do I find the factor combinations of the number 284,315?

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 284,315, 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.

1 284,315
-1 -284,315

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 284,315.

Example:
1 x 284,315 = 284,315
and
-1 x -284,315 = 284,315
Notice both answers equal 284,315

With that explanation out of the way, let's continue. Next, we take the number 284,315 and divide it by 2:

284,315 ÷ 2 = 142,157.5

If the quotient is a whole number, then 2 and 142,157.5 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:

1 284,315
-1 -284,315

Now, we try dividing 284,315 by 3:

284,315 ÷ 3 = 94,771.6667

If the quotient is a whole number, then 3 and 94,771.6667 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:

1 284,315
-1 -284,315

Let's try dividing by 4:

284,315 ÷ 4 = 71,078.75

If the quotient is a whole number, then 4 and 71,078.75 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:

1 284,315
-1 284,315
Keep dividing by the next highest number until you cannot divide anymore.

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

151015055632,81556,863284,315
-1-5-101-505-563-2,815-56,863-284,315

More Examples

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