Q: What are the factor combinations of the number 20,032,025?

 A:
Positive:   1 x 200320255 x 400640513 x 154092525 x 80128165 x 308185325 x 61637
Negative: -1 x -20032025-5 x -4006405-13 x -1540925-25 x -801281-65 x -308185-325 x -61637


How do I find the factor combinations of the number 20,032,025?

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 20,032,025, 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 20,032,025
-1 -20,032,025

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 20,032,025.

Example:
1 x 20,032,025 = 20,032,025
and
-1 x -20,032,025 = 20,032,025
Notice both answers equal 20,032,025

With that explanation out of the way, let's continue. Next, we take the number 20,032,025 and divide it by 2:

20,032,025 ÷ 2 = 10,016,012.5

If the quotient is a whole number, then 2 and 10,016,012.5 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 20,032,025
-1 -20,032,025

Now, we try dividing 20,032,025 by 3:

20,032,025 ÷ 3 = 6,677,341.6667

If the quotient is a whole number, then 3 and 6,677,341.6667 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 20,032,025
-1 -20,032,025

Let's try dividing by 4:

20,032,025 ÷ 4 = 5,008,006.25

If the quotient is a whole number, then 4 and 5,008,006.25 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 20,032,025
-1 20,032,025
Keep dividing by the next highest number until you cannot divide anymore.

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

1513256532561,637308,185801,2811,540,9254,006,40520,032,025
-1-5-13-25-65-325-61,637-308,185-801,281-1,540,925-4,006,405-20,032,025

More Examples

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