A:
Positive:
1 x 221201897 x 316002713 x 170155343 x 51442391 x 243079301 x 73489559 x 395713913 x 5653
Negative:
-1 x -22120189-7 x -3160027-13 x -1701553-43 x -514423-91 x -243079-301 x -73489-559 x -39571-3913 x -5653
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 22,120,189, 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 | 22,120,189 | |
| -1 | -22,120,189 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 22,120,189.
Example:
1 x 22,120,189 = 22,120,189
and
-1 x -22,120,189 = 22,120,189
Notice both answers equal 22,120,189
With that explanation out of the way, let's continue. Next, we take the number 22,120,189 and divide it by 2:
22,120,189 ÷ 2 = 11,060,094.5
If the quotient is a whole number, then 2 and 11,060,094.5 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 | 22,120,189 | |
| -1 | -22,120,189 |
Now, we try dividing 22,120,189 by 3:
22,120,189 ÷ 3 = 7,373,396.3333
If the quotient is a whole number, then 3 and 7,373,396.3333 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 | 22,120,189 | |
| -1 | -22,120,189 |
Let's try dividing by 4:
22,120,189 ÷ 4 = 5,530,047.25
If the quotient is a whole number, then 4 and 5,530,047.25 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 | 22,120,189 | |
| -1 | 22,120,189 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 43 | 91 | 301 | 559 | 3,913 | 5,653 | 39,571 | 73,489 | 243,079 | 514,423 | 1,701,553 | 3,160,027 | 22,120,189 |
| -1 | -7 | -13 | -43 | -91 | -301 | -559 | -3,913 | -5,653 | -39,571 | -73,489 | -243,079 | -514,423 | -1,701,553 | -3,160,027 | -22,120,189 |
Here are some more numbers to try:
Try the factor calculator