Q: What are the factor combinations of the number 25,076,015?

 A:
Positive:   1 x 250760155 x 5015203443 x 566052215 x 11321
Negative: -1 x -25076015-5 x -5015203-443 x -56605-2215 x -11321


How do I find the factor combinations of the number 25,076,015?

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 25,076,015, 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 25,076,015
-1 -25,076,015

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 25,076,015.

Example:
1 x 25,076,015 = 25,076,015
and
-1 x -25,076,015 = 25,076,015
Notice both answers equal 25,076,015

With that explanation out of the way, let's continue. Next, we take the number 25,076,015 and divide it by 2:

25,076,015 ÷ 2 = 12,538,007.5

If the quotient is a whole number, then 2 and 12,538,007.5 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 25,076,015
-1 -25,076,015

Now, we try dividing 25,076,015 by 3:

25,076,015 ÷ 3 = 8,358,671.6667

If the quotient is a whole number, then 3 and 8,358,671.6667 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 25,076,015
-1 -25,076,015

Let's try dividing by 4:

25,076,015 ÷ 4 = 6,269,003.75

If the quotient is a whole number, then 4 and 6,269,003.75 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 25,076,015
-1 25,076,015
Keep dividing by the next highest number until you cannot divide anymore.

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

154432,21511,32156,6055,015,20325,076,015
-1-5-443-2,215-11,321-56,605-5,015,203-25,076,015

More Examples

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