Q: What are the factor combinations of the number 68,365?

 A:
Positive:   1 x 683655 x 1367311 x 621555 x 1243113 x 605121 x 565
Negative: -1 x -68365-5 x -13673-11 x -6215-55 x -1243-113 x -605-121 x -565


How do I find the factor combinations of the number 68,365?

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 68,365, 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 68,365
-1 -68,365

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 68,365.

Example:
1 x 68,365 = 68,365
and
-1 x -68,365 = 68,365
Notice both answers equal 68,365

With that explanation out of the way, let's continue. Next, we take the number 68,365 and divide it by 2:

68,365 ÷ 2 = 34,182.5

If the quotient is a whole number, then 2 and 34,182.5 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 68,365
-1 -68,365

Now, we try dividing 68,365 by 3:

68,365 ÷ 3 = 22,788.3333

If the quotient is a whole number, then 3 and 22,788.3333 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 68,365
-1 -68,365

Let's try dividing by 4:

68,365 ÷ 4 = 17,091.25

If the quotient is a whole number, then 4 and 17,091.25 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 68,365
-1 68,365
Keep dividing by the next highest number until you cannot divide anymore.

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

1511551131215656051,2436,21513,67368,365
-1-5-11-55-113-121-565-605-1,243-6,215-13,673-68,365

More Examples

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