A:
Positive:
1 x 2088823919 x 109938137 x 56454743 x 485773691 x 30229703 x 29713817 x 255671591 x 13129
Negative:
-1 x -20888239-19 x -1099381-37 x -564547-43 x -485773-691 x -30229-703 x -29713-817 x -25567-1591 x -13129
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 20,888,239, 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 | 20,888,239 | |
| -1 | -20,888,239 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 20,888,239.
Example:
1 x 20,888,239 = 20,888,239
and
-1 x -20,888,239 = 20,888,239
Notice both answers equal 20,888,239
With that explanation out of the way, let's continue. Next, we take the number 20,888,239 and divide it by 2:
20,888,239 ÷ 2 = 10,444,119.5
If the quotient is a whole number, then 2 and 10,444,119.5 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 | 20,888,239 | |
| -1 | -20,888,239 |
Now, we try dividing 20,888,239 by 3:
20,888,239 ÷ 3 = 6,962,746.3333
If the quotient is a whole number, then 3 and 6,962,746.3333 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 | 20,888,239 | |
| -1 | -20,888,239 |
Let's try dividing by 4:
20,888,239 ÷ 4 = 5,222,059.75
If the quotient is a whole number, then 4 and 5,222,059.75 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 | 20,888,239 | |
| -1 | 20,888,239 |
If you did it right, you will end up with this table:
| 1 | 19 | 37 | 43 | 691 | 703 | 817 | 1,591 | 13,129 | 25,567 | 29,713 | 30,229 | 485,773 | 564,547 | 1,099,381 | 20,888,239 |
| -1 | -19 | -37 | -43 | -691 | -703 | -817 | -1,591 | -13,129 | -25,567 | -29,713 | -30,229 | -485,773 | -564,547 | -1,099,381 | -20,888,239 |
Here are some more numbers to try:
Try the factor calculator