Q: What are the factor combinations of the number 68,375?

 A:
Positive:   1 x 683755 x 1367525 x 2735125 x 547
Negative: -1 x -68375-5 x -13675-25 x -2735-125 x -547


How do I find the factor combinations of the number 68,375?

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 68,375, 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 68,375
-1 -68,375

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 68,375.

Example:
1 x 68,375 = 68,375
and
-1 x -68,375 = 68,375
Notice both answers equal 68,375

With that explanation out of the way, let's continue. Next, we take the number 68,375 and divide it by 2:

68,375 ÷ 2 = 34,187.5

If the quotient is a whole number, then 2 and 34,187.5 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 68,375
-1 -68,375

Now, we try dividing 68,375 by 3:

68,375 ÷ 3 = 22,791.6667

If the quotient is a whole number, then 3 and 22,791.6667 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 68,375
-1 -68,375

Let's try dividing by 4:

68,375 ÷ 4 = 17,093.75

If the quotient is a whole number, then 4 and 17,093.75 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 68,375
-1 68,375
Keep dividing by the next highest number until you cannot divide anymore.

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

15251255472,73513,67568,375
-1-5-25-125-547-2,735-13,675-68,375

More Examples

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