Q: What are the factor combinations of the number 214,285?

 A:
Positive:   1 x 2142855 x 4285717 x 1260585 x 2521
Negative: -1 x -214285-5 x -42857-17 x -12605-85 x -2521


How do I find the factor combinations of the number 214,285?

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 214,285, 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.

1 214,285
-1 -214,285

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 214,285.

Example:
1 x 214,285 = 214,285
and
-1 x -214,285 = 214,285
Notice both answers equal 214,285

With that explanation out of the way, let's continue. Next, we take the number 214,285 and divide it by 2:

214,285 ÷ 2 = 107,142.5

If the quotient is a whole number, then 2 and 107,142.5 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:

1 214,285
-1 -214,285

Now, we try dividing 214,285 by 3:

214,285 ÷ 3 = 71,428.3333

If the quotient is a whole number, then 3 and 71,428.3333 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:

1 214,285
-1 -214,285

Let's try dividing by 4:

214,285 ÷ 4 = 53,571.25

If the quotient is a whole number, then 4 and 53,571.25 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:

1 214,285
-1 214,285
Keep dividing by the next highest number until you cannot divide anymore.

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

1517852,52112,60542,857214,285
-1-5-17-85-2,521-12,605-42,857-214,285

More Examples

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