A:
Positive:
1 x 2202112913 x 169393331 x 71035953 x 415493403 x 54643689 x 319611031 x 213591643 x 13403
Negative:
-1 x -22021129-13 x -1693933-31 x -710359-53 x -415493-403 x -54643-689 x -31961-1031 x -21359-1643 x -13403
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 22,021,129, 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 | 22,021,129 | |
| -1 | -22,021,129 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 22,021,129.
Example:
1 x 22,021,129 = 22,021,129
and
-1 x -22,021,129 = 22,021,129
Notice both answers equal 22,021,129
With that explanation out of the way, let's continue. Next, we take the number 22,021,129 and divide it by 2:
22,021,129 ÷ 2 = 11,010,564.5
If the quotient is a whole number, then 2 and 11,010,564.5 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 | 22,021,129 | |
| -1 | -22,021,129 |
Now, we try dividing 22,021,129 by 3:
22,021,129 ÷ 3 = 7,340,376.3333
If the quotient is a whole number, then 3 and 7,340,376.3333 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 | 22,021,129 | |
| -1 | -22,021,129 |
Let's try dividing by 4:
22,021,129 ÷ 4 = 5,505,282.25
If the quotient is a whole number, then 4 and 5,505,282.25 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 | 22,021,129 | |
| -1 | 22,021,129 |
If you did it right, you will end up with this table:
| 1 | 13 | 31 | 53 | 403 | 689 | 1,031 | 1,643 | 13,403 | 21,359 | 31,961 | 54,643 | 415,493 | 710,359 | 1,693,933 | 22,021,129 |
| -1 | -13 | -31 | -53 | -403 | -689 | -1,031 | -1,643 | -13,403 | -21,359 | -31,961 | -54,643 | -415,493 | -710,359 | -1,693,933 | -22,021,129 |
Here are some more numbers to try:
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