Q: What are the factor combinations of the number 209,461?

 A:
Positive:   1 x 2094617 x 2992323 x 9107161 x 1301
Negative: -1 x -209461-7 x -29923-23 x -9107-161 x -1301


How do I find the factor combinations of the number 209,461?

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 209,461, 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.

1 209,461
-1 -209,461

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 209,461.

Example:
1 x 209,461 = 209,461
and
-1 x -209,461 = 209,461
Notice both answers equal 209,461

With that explanation out of the way, let's continue. Next, we take the number 209,461 and divide it by 2:

209,461 ÷ 2 = 104,730.5

If the quotient is a whole number, then 2 and 104,730.5 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:

1 209,461
-1 -209,461

Now, we try dividing 209,461 by 3:

209,461 ÷ 3 = 69,820.3333

If the quotient is a whole number, then 3 and 69,820.3333 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:

1 209,461
-1 -209,461

Let's try dividing by 4:

209,461 ÷ 4 = 52,365.25

If the quotient is a whole number, then 4 and 52,365.25 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:

1 209,461
-1 209,461
Keep dividing by the next highest number until you cannot divide anymore.

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

17231611,3019,10729,923209,461
-1-7-23-161-1,301-9,107-29,923-209,461

More Examples

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