Q: What are the factor combinations of the number 749,165?

 A:
Positive:   1 x 7491655 x 149833269 x 2785557 x 1345
Negative: -1 x -749165-5 x -149833-269 x -2785-557 x -1345


How do I find the factor combinations of the number 749,165?

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 749,165, 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.

1 749,165
-1 -749,165

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 749,165.

Example:
1 x 749,165 = 749,165
and
-1 x -749,165 = 749,165
Notice both answers equal 749,165

With that explanation out of the way, let's continue. Next, we take the number 749,165 and divide it by 2:

749,165 ÷ 2 = 374,582.5

If the quotient is a whole number, then 2 and 374,582.5 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:

1 749,165
-1 -749,165

Now, we try dividing 749,165 by 3:

749,165 ÷ 3 = 249,721.6667

If the quotient is a whole number, then 3 and 249,721.6667 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:

1 749,165
-1 -749,165

Let's try dividing by 4:

749,165 ÷ 4 = 187,291.25

If the quotient is a whole number, then 4 and 187,291.25 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:

1 749,165
-1 749,165
Keep dividing by the next highest number until you cannot divide anymore.

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

152695571,3452,785149,833749,165
-1-5-269-557-1,345-2,785-149,833-749,165

More Examples

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