Q: What are the factor combinations of the number 502,511,351?

 A:
Positive:   1 x 50251135161 x 8237891
Negative: -1 x -502511351-61 x -8237891


How do I find the factor combinations of the number 502,511,351?

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 502,511,351, 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.

1 502,511,351
-1 -502,511,351

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 502,511,351.

Example:
1 x 502,511,351 = 502,511,351
and
-1 x -502,511,351 = 502,511,351
Notice both answers equal 502,511,351

With that explanation out of the way, let's continue. Next, we take the number 502,511,351 and divide it by 2:

502,511,351 ÷ 2 = 251,255,675.5

If the quotient is a whole number, then 2 and 251,255,675.5 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:

1 502,511,351
-1 -502,511,351

Now, we try dividing 502,511,351 by 3:

502,511,351 ÷ 3 = 167,503,783.6667

If the quotient is a whole number, then 3 and 167,503,783.6667 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:

1 502,511,351
-1 -502,511,351

Let's try dividing by 4:

502,511,351 ÷ 4 = 125,627,837.75

If the quotient is a whole number, then 4 and 125,627,837.75 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:

1 502,511,351
-1 502,511,351
Keep dividing by the next highest number until you cannot divide anymore.

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

1618,237,891502,511,351
-1-61-8,237,891-502,511,351

More Examples

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