Q: What are the factor combinations of the number 519,925?

 A:
Positive:   1 x 5199255 x 1039857 x 7427525 x 2079735 x 14855175 x 2971
Negative: -1 x -519925-5 x -103985-7 x -74275-25 x -20797-35 x -14855-175 x -2971


How do I find the factor combinations of the number 519,925?

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 519,925, 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.

1 519,925
-1 -519,925

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 519,925.

Example:
1 x 519,925 = 519,925
and
-1 x -519,925 = 519,925
Notice both answers equal 519,925

With that explanation out of the way, let's continue. Next, we take the number 519,925 and divide it by 2:

519,925 ÷ 2 = 259,962.5

If the quotient is a whole number, then 2 and 259,962.5 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:

1 519,925
-1 -519,925

Now, we try dividing 519,925 by 3:

519,925 ÷ 3 = 173,308.3333

If the quotient is a whole number, then 3 and 173,308.3333 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:

1 519,925
-1 -519,925

Let's try dividing by 4:

519,925 ÷ 4 = 129,981.25

If the quotient is a whole number, then 4 and 129,981.25 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:

1 519,925
-1 519,925
Keep dividing by the next highest number until you cannot divide anymore.

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

15725351752,97114,85520,79774,275103,985519,925
-1-5-7-25-35-175-2,971-14,855-20,797-74,275-103,985-519,925

More Examples

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