Q: What are the factor combinations of the number 91,292?

 A:
Positive:   1 x 912922 x 456464 x 2282329 x 314858 x 1574116 x 787
Negative: -1 x -91292-2 x -45646-4 x -22823-29 x -3148-58 x -1574-116 x -787


How do I find the factor combinations of the number 91,292?

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 91,292, 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 91,292
-1 -91,292

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 91,292.

Example:
1 x 91,292 = 91,292
and
-1 x -91,292 = 91,292
Notice both answers equal 91,292

With that explanation out of the way, let's continue. Next, we take the number 91,292 and divide it by 2:

91,292 ÷ 2 = 45,646

If the quotient is a whole number, then 2 and 45,646 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!

Here is what our table should look like at this step:

1 2 45,646 91,292
-1 -2 -45,646 -91,292

Now, we try dividing 91,292 by 3:

91,292 ÷ 3 = 30,430.6667

If the quotient is a whole number, then 3 and 30,430.6667 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 2 45,646 91,292
-1 -2 -45,646 -91,292

Let's try dividing by 4:

91,292 ÷ 4 = 22,823

If the quotient is a whole number, then 4 and 22,823 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!

Here is what our table should look like at this step:

1 2 4 22,823 45,646 91,292
-1 -2 -4 -22,823 -45,646 91,292
Keep dividing by the next highest number until you cannot divide anymore.

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

12429581167871,5743,14822,82345,64691,292
-1-2-4-29-58-116-787-1,574-3,148-22,823-45,646-91,292

More Examples

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