Q: What are the factor combinations of the number 403,711?

 A:
Positive:   1 x 4037117 x 5767311 x 3670149 x 823977 x 5243107 x 3773343 x 1177539 x 749
Negative: -1 x -403711-7 x -57673-11 x -36701-49 x -8239-77 x -5243-107 x -3773-343 x -1177-539 x -749


How do I find the factor combinations of the number 403,711?

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 403,711, 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.

1 403,711
-1 -403,711

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 403,711.

Example:
1 x 403,711 = 403,711
and
-1 x -403,711 = 403,711
Notice both answers equal 403,711

With that explanation out of the way, let's continue. Next, we take the number 403,711 and divide it by 2:

403,711 ÷ 2 = 201,855.5

If the quotient is a whole number, then 2 and 201,855.5 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:

1 403,711
-1 -403,711

Now, we try dividing 403,711 by 3:

403,711 ÷ 3 = 134,570.3333

If the quotient is a whole number, then 3 and 134,570.3333 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:

1 403,711
-1 -403,711

Let's try dividing by 4:

403,711 ÷ 4 = 100,927.75

If the quotient is a whole number, then 4 and 100,927.75 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:

1 403,711
-1 403,711
Keep dividing by the next highest number until you cannot divide anymore.

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

171149771073435397491,1773,7735,2438,23936,70157,673403,711
-1-7-11-49-77-107-343-539-749-1,177-3,773-5,243-8,239-36,701-57,673-403,711

More Examples

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