A:
Positive:
1 x 305022555 x 61004517 x 435746523 x 132618535 x 87149349 x 622495115 x 265237161 x 189455245 x 124499805 x 378911127 x 270655413 x 5635
Negative:
-1 x -30502255-5 x -6100451-7 x -4357465-23 x -1326185-35 x -871493-49 x -622495-115 x -265237-161 x -189455-245 x -124499-805 x -37891-1127 x -27065-5413 x -5635
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 30,502,255, 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 | 30,502,255 | |
| -1 | -30,502,255 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 30,502,255.
Example:
1 x 30,502,255 = 30,502,255
and
-1 x -30,502,255 = 30,502,255
Notice both answers equal 30,502,255
With that explanation out of the way, let's continue. Next, we take the number 30,502,255 and divide it by 2:
30,502,255 ÷ 2 = 15,251,127.5
If the quotient is a whole number, then 2 and 15,251,127.5 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 | 30,502,255 | |
| -1 | -30,502,255 |
Now, we try dividing 30,502,255 by 3:
30,502,255 ÷ 3 = 10,167,418.3333
If the quotient is a whole number, then 3 and 10,167,418.3333 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 | 30,502,255 | |
| -1 | -30,502,255 |
Let's try dividing by 4:
30,502,255 ÷ 4 = 7,625,563.75
If the quotient is a whole number, then 4 and 7,625,563.75 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 | 30,502,255 | |
| -1 | 30,502,255 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 23 | 35 | 49 | 115 | 161 | 245 | 805 | 1,127 | 5,413 | 5,635 | 27,065 | 37,891 | 124,499 | 189,455 | 265,237 | 622,495 | 871,493 | 1,326,185 | 4,357,465 | 6,100,451 | 30,502,255 |
| -1 | -5 | -7 | -23 | -35 | -49 | -115 | -161 | -245 | -805 | -1,127 | -5,413 | -5,635 | -27,065 | -37,891 | -124,499 | -189,455 | -265,237 | -622,495 | -871,493 | -1,326,185 | -4,357,465 | -6,100,451 | -30,502,255 |
Here are some more numbers to try:
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