Q: What are the factor combinations of the number 208,943?

 A:
Positive:   1 x 2089437 x 2984919 x 10997133 x 1571
Negative: -1 x -208943-7 x -29849-19 x -10997-133 x -1571


How do I find the factor combinations of the number 208,943?

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 208,943, 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.

1 208,943
-1 -208,943

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 208,943.

Example:
1 x 208,943 = 208,943
and
-1 x -208,943 = 208,943
Notice both answers equal 208,943

With that explanation out of the way, let's continue. Next, we take the number 208,943 and divide it by 2:

208,943 ÷ 2 = 104,471.5

If the quotient is a whole number, then 2 and 104,471.5 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:

1 208,943
-1 -208,943

Now, we try dividing 208,943 by 3:

208,943 ÷ 3 = 69,647.6667

If the quotient is a whole number, then 3 and 69,647.6667 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:

1 208,943
-1 -208,943

Let's try dividing by 4:

208,943 ÷ 4 = 52,235.75

If the quotient is a whole number, then 4 and 52,235.75 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:

1 208,943
-1 208,943
Keep dividing by the next highest number until you cannot divide anymore.

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

17191331,57110,99729,849208,943
-1-7-19-133-1,571-10,997-29,849-208,943

More Examples

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