A:
Positive:
1 x 12050516317 x 708853919 x 6342377323 x 373081349 x 3452871069 x 1127275933 x 203116631 x 18173
Negative:
-1 x -120505163-17 x -7088539-19 x -6342377-323 x -373081-349 x -345287-1069 x -112727-5933 x -20311-6631 x -18173
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 120,505,163, 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 | 120,505,163 | |
| -1 | -120,505,163 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 120,505,163.
Example:
1 x 120,505,163 = 120,505,163
and
-1 x -120,505,163 = 120,505,163
Notice both answers equal 120,505,163
With that explanation out of the way, let's continue. Next, we take the number 120,505,163 and divide it by 2:
120,505,163 ÷ 2 = 60,252,581.5
If the quotient is a whole number, then 2 and 60,252,581.5 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 | 120,505,163 | |
| -1 | -120,505,163 |
Now, we try dividing 120,505,163 by 3:
120,505,163 ÷ 3 = 40,168,387.6667
If the quotient is a whole number, then 3 and 40,168,387.6667 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 | 120,505,163 | |
| -1 | -120,505,163 |
Let's try dividing by 4:
120,505,163 ÷ 4 = 30,126,290.75
If the quotient is a whole number, then 4 and 30,126,290.75 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 | 120,505,163 | |
| -1 | 120,505,163 |
If you did it right, you will end up with this table:
| 1 | 17 | 19 | 323 | 349 | 1,069 | 5,933 | 6,631 | 18,173 | 20,311 | 112,727 | 345,287 | 373,081 | 6,342,377 | 7,088,539 | 120,505,163 |
| -1 | -17 | -19 | -323 | -349 | -1,069 | -5,933 | -6,631 | -18,173 | -20,311 | -112,727 | -345,287 | -373,081 | -6,342,377 | -7,088,539 | -120,505,163 |
Here are some more numbers to try:
Try the factor calculator