A:
Positive:
1 x 203350155 x 406700337 x 549595185 x 109919
Negative:
-1 x -20335015-5 x -4067003-37 x -549595-185 x -109919
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 20,335,015, 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 | 20,335,015 | |
| -1 | -20,335,015 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 20,335,015.
Example:
1 x 20,335,015 = 20,335,015
and
-1 x -20,335,015 = 20,335,015
Notice both answers equal 20,335,015
With that explanation out of the way, let's continue. Next, we take the number 20,335,015 and divide it by 2:
20,335,015 ÷ 2 = 10,167,507.5
If the quotient is a whole number, then 2 and 10,167,507.5 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 | 20,335,015 | |
| -1 | -20,335,015 |
Now, we try dividing 20,335,015 by 3:
20,335,015 ÷ 3 = 6,778,338.3333
If the quotient is a whole number, then 3 and 6,778,338.3333 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 | 20,335,015 | |
| -1 | -20,335,015 |
Let's try dividing by 4:
20,335,015 ÷ 4 = 5,083,753.75
If the quotient is a whole number, then 4 and 5,083,753.75 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 | 20,335,015 | |
| -1 | 20,335,015 |
If you did it right, you will end up with this table:
| 1 | 5 | 37 | 185 | 109,919 | 549,595 | 4,067,003 | 20,335,015 |
| -1 | -5 | -37 | -185 | -109,919 | -549,595 | -4,067,003 | -20,335,015 |
Here are some more numbers to try:
Try the factor calculator