A:
Positive:
1 x 48502177113 x 37309367191 x 2539381229 x 2117999853 x 5686072483 x 1953372977 x 16292311089 x 43739
Negative:
-1 x -485021771-13 x -37309367-191 x -2539381-229 x -2117999-853 x -568607-2483 x -195337-2977 x -162923-11089 x -43739
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 485,021,771, 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 | 485,021,771 | |
| -1 | -485,021,771 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 485,021,771.
Example:
1 x 485,021,771 = 485,021,771
and
-1 x -485,021,771 = 485,021,771
Notice both answers equal 485,021,771
With that explanation out of the way, let's continue. Next, we take the number 485,021,771 and divide it by 2:
485,021,771 ÷ 2 = 242,510,885.5
If the quotient is a whole number, then 2 and 242,510,885.5 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 | 485,021,771 | |
| -1 | -485,021,771 |
Now, we try dividing 485,021,771 by 3:
485,021,771 ÷ 3 = 161,673,923.6667
If the quotient is a whole number, then 3 and 161,673,923.6667 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 | 485,021,771 | |
| -1 | -485,021,771 |
Let's try dividing by 4:
485,021,771 ÷ 4 = 121,255,442.75
If the quotient is a whole number, then 4 and 121,255,442.75 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 | 485,021,771 | |
| -1 | 485,021,771 |
If you did it right, you will end up with this table:
| 1 | 13 | 191 | 229 | 853 | 2,483 | 2,977 | 11,089 | 43,739 | 162,923 | 195,337 | 568,607 | 2,117,999 | 2,539,381 | 37,309,367 | 485,021,771 |
| -1 | -13 | -191 | -229 | -853 | -2,483 | -2,977 | -11,089 | -43,739 | -162,923 | -195,337 | -568,607 | -2,117,999 | -2,539,381 | -37,309,367 | -485,021,771 |
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