Q: What are the factor combinations of the number 510,002,525?

 A:
Positive:   1 x 5100025255 x 10200050525 x 20400101
Negative: -1 x -510002525-5 x -102000505-25 x -20400101


How do I find the factor combinations of the number 510,002,525?

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 510,002,525, 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.

1 510,002,525
-1 -510,002,525

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 510,002,525.

Example:
1 x 510,002,525 = 510,002,525
and
-1 x -510,002,525 = 510,002,525
Notice both answers equal 510,002,525

With that explanation out of the way, let's continue. Next, we take the number 510,002,525 and divide it by 2:

510,002,525 ÷ 2 = 255,001,262.5

If the quotient is a whole number, then 2 and 255,001,262.5 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:

1 510,002,525
-1 -510,002,525

Now, we try dividing 510,002,525 by 3:

510,002,525 ÷ 3 = 170,000,841.6667

If the quotient is a whole number, then 3 and 170,000,841.6667 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:

1 510,002,525
-1 -510,002,525

Let's try dividing by 4:

510,002,525 ÷ 4 = 127,500,631.25

If the quotient is a whole number, then 4 and 127,500,631.25 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:

1 510,002,525
-1 510,002,525
Keep dividing by the next highest number until you cannot divide anymore.

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

152520,400,101102,000,505510,002,525
-1-5-25-20,400,101-102,000,505-510,002,525

More Examples

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