Q: What are the factor combinations of the number 8,417,525?

 A:
Positive:   1 x 84175255 x 168350525 x 336701109 x 77225545 x 154452725 x 3089
Negative: -1 x -8417525-5 x -1683505-25 x -336701-109 x -77225-545 x -15445-2725 x -3089


How do I find the factor combinations of the number 8,417,525?

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 8,417,525, 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 8,417,525
-1 -8,417,525

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 8,417,525.

Example:
1 x 8,417,525 = 8,417,525
and
-1 x -8,417,525 = 8,417,525
Notice both answers equal 8,417,525

With that explanation out of the way, let's continue. Next, we take the number 8,417,525 and divide it by 2:

8,417,525 ÷ 2 = 4,208,762.5

If the quotient is a whole number, then 2 and 4,208,762.5 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 8,417,525
-1 -8,417,525

Now, we try dividing 8,417,525 by 3:

8,417,525 ÷ 3 = 2,805,841.6667

If the quotient is a whole number, then 3 and 2,805,841.6667 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 8,417,525
-1 -8,417,525

Let's try dividing by 4:

8,417,525 ÷ 4 = 2,104,381.25

If the quotient is a whole number, then 4 and 2,104,381.25 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 8,417,525
-1 8,417,525
Keep dividing by the next highest number until you cannot divide anymore.

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

15251095452,7253,08915,44577,225336,7011,683,5058,417,525
-1-5-25-109-545-2,725-3,089-15,445-77,225-336,701-1,683,505-8,417,525

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