Q: What are the factor combinations of the number 726,271?

 A:
Positive:   1 x 7262717 x 10375313 x 5586723 x 3157791 x 7981161 x 4511299 x 2429347 x 2093
Negative: -1 x -726271-7 x -103753-13 x -55867-23 x -31577-91 x -7981-161 x -4511-299 x -2429-347 x -2093


How do I find the factor combinations of the number 726,271?

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 726,271, 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.

1 726,271
-1 -726,271

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 726,271.

Example:
1 x 726,271 = 726,271
and
-1 x -726,271 = 726,271
Notice both answers equal 726,271

With that explanation out of the way, let's continue. Next, we take the number 726,271 and divide it by 2:

726,271 ÷ 2 = 363,135.5

If the quotient is a whole number, then 2 and 363,135.5 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:

1 726,271
-1 -726,271

Now, we try dividing 726,271 by 3:

726,271 ÷ 3 = 242,090.3333

If the quotient is a whole number, then 3 and 242,090.3333 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:

1 726,271
-1 -726,271

Let's try dividing by 4:

726,271 ÷ 4 = 181,567.75

If the quotient is a whole number, then 4 and 181,567.75 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:

1 726,271
-1 726,271
Keep dividing by the next highest number until you cannot divide anymore.

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

171323911612993472,0932,4294,5117,98131,57755,867103,753726,271
-1-7-13-23-91-161-299-347-2,093-2,429-4,511-7,981-31,577-55,867-103,753-726,271

More Examples

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