A:
Positive:
1 x 298118155 x 596236311 x 271016555 x 54203359 x 505285295 x 101057649 x 459353245 x 9187
Negative:
-1 x -29811815-5 x -5962363-11 x -2710165-55 x -542033-59 x -505285-295 x -101057-649 x -45935-3245 x -9187
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 29,811,815, 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 | 29,811,815 | |
| -1 | -29,811,815 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 29,811,815.
Example:
1 x 29,811,815 = 29,811,815
and
-1 x -29,811,815 = 29,811,815
Notice both answers equal 29,811,815
With that explanation out of the way, let's continue. Next, we take the number 29,811,815 and divide it by 2:
29,811,815 ÷ 2 = 14,905,907.5
If the quotient is a whole number, then 2 and 14,905,907.5 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 | 29,811,815 | |
| -1 | -29,811,815 |
Now, we try dividing 29,811,815 by 3:
29,811,815 ÷ 3 = 9,937,271.6667
If the quotient is a whole number, then 3 and 9,937,271.6667 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 | 29,811,815 | |
| -1 | -29,811,815 |
Let's try dividing by 4:
29,811,815 ÷ 4 = 7,452,953.75
If the quotient is a whole number, then 4 and 7,452,953.75 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 | 29,811,815 | |
| -1 | 29,811,815 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 59 | 295 | 649 | 3,245 | 9,187 | 45,935 | 101,057 | 505,285 | 542,033 | 2,710,165 | 5,962,363 | 29,811,815 |
| -1 | -5 | -11 | -55 | -59 | -295 | -649 | -3,245 | -9,187 | -45,935 | -101,057 | -505,285 | -542,033 | -2,710,165 | -5,962,363 | -29,811,815 |
Here are some more numbers to try:
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