A:
Positive:
1 x 5180834155 x 10361668317 x 3047549585 x 60950991319 x 3927854621 x 1121156595 x 7855722423 x 23105
Negative:
-1 x -518083415-5 x -103616683-17 x -30475495-85 x -6095099-1319 x -392785-4621 x -112115-6595 x -78557-22423 x -23105
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 518,083,415, 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 | 518,083,415 | |
| -1 | -518,083,415 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 518,083,415.
Example:
1 x 518,083,415 = 518,083,415
and
-1 x -518,083,415 = 518,083,415
Notice both answers equal 518,083,415
With that explanation out of the way, let's continue. Next, we take the number 518,083,415 and divide it by 2:
518,083,415 ÷ 2 = 259,041,707.5
If the quotient is a whole number, then 2 and 259,041,707.5 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 | 518,083,415 | |
| -1 | -518,083,415 |
Now, we try dividing 518,083,415 by 3:
518,083,415 ÷ 3 = 172,694,471.6667
If the quotient is a whole number, then 3 and 172,694,471.6667 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 | 518,083,415 | |
| -1 | -518,083,415 |
Let's try dividing by 4:
518,083,415 ÷ 4 = 129,520,853.75
If the quotient is a whole number, then 4 and 129,520,853.75 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 | 518,083,415 | |
| -1 | 518,083,415 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 1,319 | 4,621 | 6,595 | 22,423 | 23,105 | 78,557 | 112,115 | 392,785 | 6,095,099 | 30,475,495 | 103,616,683 | 518,083,415 |
| -1 | -5 | -17 | -85 | -1,319 | -4,621 | -6,595 | -22,423 | -23,105 | -78,557 | -112,115 | -392,785 | -6,095,099 | -30,475,495 | -103,616,683 | -518,083,415 |
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