Q: What are the factor combinations of the number 542,717?

 A:
Positive:   1 x 5427177 x 7753131 x 1750741 x 1323761 x 8897217 x 2501287 x 1891427 x 1271
Negative: -1 x -542717-7 x -77531-31 x -17507-41 x -13237-61 x -8897-217 x -2501-287 x -1891-427 x -1271


How do I find the factor combinations of the number 542,717?

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 542,717, 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.

1 542,717
-1 -542,717

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 542,717.

Example:
1 x 542,717 = 542,717
and
-1 x -542,717 = 542,717
Notice both answers equal 542,717

With that explanation out of the way, let's continue. Next, we take the number 542,717 and divide it by 2:

542,717 ÷ 2 = 271,358.5

If the quotient is a whole number, then 2 and 271,358.5 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:

1 542,717
-1 -542,717

Now, we try dividing 542,717 by 3:

542,717 ÷ 3 = 180,905.6667

If the quotient is a whole number, then 3 and 180,905.6667 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:

1 542,717
-1 -542,717

Let's try dividing by 4:

542,717 ÷ 4 = 135,679.25

If the quotient is a whole number, then 4 and 135,679.25 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:

1 542,717
-1 542,717
Keep dividing by the next highest number until you cannot divide anymore.

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

173141612172874271,2711,8912,5018,89713,23717,50777,531542,717
-1-7-31-41-61-217-287-427-1,271-1,891-2,501-8,897-13,237-17,507-77,531-542,717

More Examples

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