How do I find the factor combinations of the number 22,218,924?
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 22,218,924, 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 |
|
22,218,924 |
-1 |
|
-22,218,924 |
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 22,218,924.
Example:
1 x 22,218,924 = 22,218,924
and
-1 x -22,218,924 = 22,218,924
Notice both answers equal 22,218,924
With that explanation out of the way, let's continue. Next, we take the number 22,218,924 and divide it by 2:
22,218,924 ÷ 2 = 11,109,462
If the quotient is a whole number, then 2 and 11,109,462 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:
Now, we try dividing 22,218,924 by 3:
22,218,924 ÷ 3 = 7,406,308
If the quotient is a whole number, then 3 and 7,406,308 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:
Let's try dividing by 4:
22,218,924 ÷ 4 = 5,554,731
If the quotient is a whole number, then 4 and 5,554,731 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:
Keep dividing by the next highest number until you cannot divide anymore.
If you did it right, you will end up with this table:
More Examples
Here are some more numbers to try:
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