Q: What are the factor combinations of the number 214,571?

 A:
Positive:   1 x 2145717 x 3065329 x 739949 x 4379151 x 1421203 x 1057
Negative: -1 x -214571-7 x -30653-29 x -7399-49 x -4379-151 x -1421-203 x -1057


How do I find the factor combinations of the number 214,571?

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 214,571, 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.

1 214,571
-1 -214,571

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 214,571.

Example:
1 x 214,571 = 214,571
and
-1 x -214,571 = 214,571
Notice both answers equal 214,571

With that explanation out of the way, let's continue. Next, we take the number 214,571 and divide it by 2:

214,571 ÷ 2 = 107,285.5

If the quotient is a whole number, then 2 and 107,285.5 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:

1 214,571
-1 -214,571

Now, we try dividing 214,571 by 3:

214,571 ÷ 3 = 71,523.6667

If the quotient is a whole number, then 3 and 71,523.6667 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:

1 214,571
-1 -214,571

Let's try dividing by 4:

214,571 ÷ 4 = 53,642.75

If the quotient is a whole number, then 4 and 53,642.75 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:

1 214,571
-1 214,571
Keep dividing by the next highest number until you cannot divide anymore.

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

1729491512031,0571,4214,3797,39930,653214,571
-1-7-29-49-151-203-1,057-1,421-4,379-7,399-30,653-214,571

More Examples

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