A:
Positive:
1 x 5154231355 x 10308462737 x 13930355185 x 2786071929 x 5548152999 x 1718654645 x 11096314995 x 34373
Negative:
-1 x -515423135-5 x -103084627-37 x -13930355-185 x -2786071-929 x -554815-2999 x -171865-4645 x -110963-14995 x -34373
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 515,423,135, 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 | 515,423,135 | |
| -1 | -515,423,135 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 515,423,135.
Example:
1 x 515,423,135 = 515,423,135
and
-1 x -515,423,135 = 515,423,135
Notice both answers equal 515,423,135
With that explanation out of the way, let's continue. Next, we take the number 515,423,135 and divide it by 2:
515,423,135 ÷ 2 = 257,711,567.5
If the quotient is a whole number, then 2 and 257,711,567.5 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 | 515,423,135 | |
| -1 | -515,423,135 |
Now, we try dividing 515,423,135 by 3:
515,423,135 ÷ 3 = 171,807,711.6667
If the quotient is a whole number, then 3 and 171,807,711.6667 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 | 515,423,135 | |
| -1 | -515,423,135 |
Let's try dividing by 4:
515,423,135 ÷ 4 = 128,855,783.75
If the quotient is a whole number, then 4 and 128,855,783.75 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 | 515,423,135 | |
| -1 | 515,423,135 |
If you did it right, you will end up with this table:
| 1 | 5 | 37 | 185 | 929 | 2,999 | 4,645 | 14,995 | 34,373 | 110,963 | 171,865 | 554,815 | 2,786,071 | 13,930,355 | 103,084,627 | 515,423,135 |
| -1 | -5 | -37 | -185 | -929 | -2,999 | -4,645 | -14,995 | -34,373 | -110,963 | -171,865 | -554,815 | -2,786,071 | -13,930,355 | -103,084,627 | -515,423,135 |
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