Q: What are the factor combinations of the number 25,027,525?

 A:
Positive:   1 x 250275255 x 500550525 x 1001101971 x 257751031 x 242754855 x 5155
Negative: -1 x -25027525-5 x -5005505-25 x -1001101-971 x -25775-1031 x -24275-4855 x -5155


How do I find the factor combinations of the number 25,027,525?

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 25,027,525, 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 25,027,525
-1 -25,027,525

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 25,027,525.

Example:
1 x 25,027,525 = 25,027,525
and
-1 x -25,027,525 = 25,027,525
Notice both answers equal 25,027,525

With that explanation out of the way, let's continue. Next, we take the number 25,027,525 and divide it by 2:

25,027,525 ÷ 2 = 12,513,762.5

If the quotient is a whole number, then 2 and 12,513,762.5 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 25,027,525
-1 -25,027,525

Now, we try dividing 25,027,525 by 3:

25,027,525 ÷ 3 = 8,342,508.3333

If the quotient is a whole number, then 3 and 8,342,508.3333 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 25,027,525
-1 -25,027,525

Let's try dividing by 4:

25,027,525 ÷ 4 = 6,256,881.25

If the quotient is a whole number, then 4 and 6,256,881.25 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 25,027,525
-1 25,027,525
Keep dividing by the next highest number until you cannot divide anymore.

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

15259711,0314,8555,15524,27525,7751,001,1015,005,50525,027,525
-1-5-25-971-1,031-4,855-5,155-24,275-25,775-1,001,101-5,005,505-25,027,525

More Examples

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