Q: What are the factor combinations of the number 202,631?

 A:
Positive:   1 x 20263111 x 1842113 x 15587109 x 1859143 x 1417169 x 1199
Negative: -1 x -202631-11 x -18421-13 x -15587-109 x -1859-143 x -1417-169 x -1199


How do I find the factor combinations of the number 202,631?

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 202,631, 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.

1 202,631
-1 -202,631

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 202,631.

Example:
1 x 202,631 = 202,631
and
-1 x -202,631 = 202,631
Notice both answers equal 202,631

With that explanation out of the way, let's continue. Next, we take the number 202,631 and divide it by 2:

202,631 ÷ 2 = 101,315.5

If the quotient is a whole number, then 2 and 101,315.5 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:

1 202,631
-1 -202,631

Now, we try dividing 202,631 by 3:

202,631 ÷ 3 = 67,543.6667

If the quotient is a whole number, then 3 and 67,543.6667 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:

1 202,631
-1 -202,631

Let's try dividing by 4:

202,631 ÷ 4 = 50,657.75

If the quotient is a whole number, then 4 and 50,657.75 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:

1 202,631
-1 202,631
Keep dividing by the next highest number until you cannot divide anymore.

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

111131091431691,1991,4171,85915,58718,421202,631
-1-11-13-109-143-169-1,199-1,417-1,859-15,587-18,421-202,631

More Examples

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