A:
Positive:
1 x 48537181117 x 2855128329 x 16736959493 x 984527499 x 9726891973 x 2460078483 x 5721714471 x 33541
Negative:
-1 x -485371811-17 x -28551283-29 x -16736959-493 x -984527-499 x -972689-1973 x -246007-8483 x -57217-14471 x -33541
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 485,371,811, 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 | 485,371,811 | |
| -1 | -485,371,811 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 485,371,811.
Example:
1 x 485,371,811 = 485,371,811
and
-1 x -485,371,811 = 485,371,811
Notice both answers equal 485,371,811
With that explanation out of the way, let's continue. Next, we take the number 485,371,811 and divide it by 2:
485,371,811 ÷ 2 = 242,685,905.5
If the quotient is a whole number, then 2 and 242,685,905.5 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 | 485,371,811 | |
| -1 | -485,371,811 |
Now, we try dividing 485,371,811 by 3:
485,371,811 ÷ 3 = 161,790,603.6667
If the quotient is a whole number, then 3 and 161,790,603.6667 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 | 485,371,811 | |
| -1 | -485,371,811 |
Let's try dividing by 4:
485,371,811 ÷ 4 = 121,342,952.75
If the quotient is a whole number, then 4 and 121,342,952.75 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 | 485,371,811 | |
| -1 | 485,371,811 |
If you did it right, you will end up with this table:
| 1 | 17 | 29 | 493 | 499 | 1,973 | 8,483 | 14,471 | 33,541 | 57,217 | 246,007 | 972,689 | 984,527 | 16,736,959 | 28,551,283 | 485,371,811 |
| -1 | -17 | -29 | -493 | -499 | -1,973 | -8,483 | -14,471 | -33,541 | -57,217 | -246,007 | -972,689 | -984,527 | -16,736,959 | -28,551,283 | -485,371,811 |
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