Q: What are the factor combinations of the number 50,105?

 A:
Positive:   1 x 501055 x 1002111 x 455555 x 911
Negative: -1 x -50105-5 x -10021-11 x -4555-55 x -911


How do I find the factor combinations of the number 50,105?

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 50,105, 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 50,105
-1 -50,105

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 50,105.

Example:
1 x 50,105 = 50,105
and
-1 x -50,105 = 50,105
Notice both answers equal 50,105

With that explanation out of the way, let's continue. Next, we take the number 50,105 and divide it by 2:

50,105 ÷ 2 = 25,052.5

If the quotient is a whole number, then 2 and 25,052.5 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 50,105
-1 -50,105

Now, we try dividing 50,105 by 3:

50,105 ÷ 3 = 16,701.6667

If the quotient is a whole number, then 3 and 16,701.6667 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 50,105
-1 -50,105

Let's try dividing by 4:

50,105 ÷ 4 = 12,526.25

If the quotient is a whole number, then 4 and 12,526.25 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 50,105
-1 50,105
Keep dividing by the next highest number until you cannot divide anymore.

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

1511559114,55510,02150,105
-1-5-11-55-911-4,555-10,021-50,105

More Examples

Here are some more numbers to try:

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