A:
Positive:
1 x 221211355 x 442422731 x 71358543 x 514445155 x 142717215 x 1028891333 x 165953319 x 6665
Negative:
-1 x -22121135-5 x -4424227-31 x -713585-43 x -514445-155 x -142717-215 x -102889-1333 x -16595-3319 x -6665
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 22,121,135, it is easier to work with a table - it's called factoring from the outside in.
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 | 22,121,135 | |
| -1 | -22,121,135 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 22,121,135.
Example:
1 x 22,121,135 = 22,121,135
and
-1 x -22,121,135 = 22,121,135
Notice both answers equal 22,121,135
With that explanation out of the way, let's continue. Next, we take the number 22,121,135 and divide it by 2:
22,121,135 ÷ 2 = 11,060,567.5
If the quotient is a whole number, then 2 and 11,060,567.5 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 | 22,121,135 | |
| -1 | -22,121,135 |
Now, we try dividing 22,121,135 by 3:
22,121,135 ÷ 3 = 7,373,711.6667
If the quotient is a whole number, then 3 and 7,373,711.6667 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 | 22,121,135 | |
| -1 | -22,121,135 |
Let's try dividing by 4:
22,121,135 ÷ 4 = 5,530,283.75
If the quotient is a whole number, then 4 and 5,530,283.75 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 | 22,121,135 | |
| -1 | 22,121,135 |
If you did it right, you will end up with this table:
| 1 | 5 | 31 | 43 | 155 | 215 | 1,333 | 3,319 | 6,665 | 16,595 | 102,889 | 142,717 | 514,445 | 713,585 | 4,424,227 | 22,121,135 |
| -1 | -5 | -31 | -43 | -155 | -215 | -1,333 | -3,319 | -6,665 | -16,595 | -102,889 | -142,717 | -514,445 | -713,585 | -4,424,227 | -22,121,135 |
Here are some more numbers to try:
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