Q: What are the factor combinations of the number 350,581?

 A:
Positive:   1 x 3505817 x 5008311 x 3187129 x 1208977 x 4553157 x 2233203 x 1727319 x 1099
Negative: -1 x -350581-7 x -50083-11 x -31871-29 x -12089-77 x -4553-157 x -2233-203 x -1727-319 x -1099


How do I find the factor combinations of the number 350,581?

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 350,581, 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.

1 350,581
-1 -350,581

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 350,581.

Example:
1 x 350,581 = 350,581
and
-1 x -350,581 = 350,581
Notice both answers equal 350,581

With that explanation out of the way, let's continue. Next, we take the number 350,581 and divide it by 2:

350,581 ÷ 2 = 175,290.5

If the quotient is a whole number, then 2 and 175,290.5 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:

1 350,581
-1 -350,581

Now, we try dividing 350,581 by 3:

350,581 ÷ 3 = 116,860.3333

If the quotient is a whole number, then 3 and 116,860.3333 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:

1 350,581
-1 -350,581

Let's try dividing by 4:

350,581 ÷ 4 = 87,645.25

If the quotient is a whole number, then 4 and 87,645.25 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:

1 350,581
-1 350,581
Keep dividing by the next highest number until you cannot divide anymore.

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

171129771572033191,0991,7272,2334,55312,08931,87150,083350,581
-1-7-11-29-77-157-203-319-1,099-1,727-2,233-4,553-12,089-31,871-50,083-350,581

More Examples

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