A:
Positive:
1 x 308013655 x 61602737 x 440019517 x 181184535 x 88003985 x 362369119 x 258835595 x 51767
Negative:
-1 x -30801365-5 x -6160273-7 x -4400195-17 x -1811845-35 x -880039-85 x -362369-119 x -258835-595 x -51767
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 30,801,365, 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 | 30,801,365 | |
| -1 | -30,801,365 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 30,801,365.
Example:
1 x 30,801,365 = 30,801,365
and
-1 x -30,801,365 = 30,801,365
Notice both answers equal 30,801,365
With that explanation out of the way, let's continue. Next, we take the number 30,801,365 and divide it by 2:
30,801,365 ÷ 2 = 15,400,682.5
If the quotient is a whole number, then 2 and 15,400,682.5 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 | 30,801,365 | |
| -1 | -30,801,365 |
Now, we try dividing 30,801,365 by 3:
30,801,365 ÷ 3 = 10,267,121.6667
If the quotient is a whole number, then 3 and 10,267,121.6667 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 | 30,801,365 | |
| -1 | -30,801,365 |
Let's try dividing by 4:
30,801,365 ÷ 4 = 7,700,341.25
If the quotient is a whole number, then 4 and 7,700,341.25 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 | 30,801,365 | |
| -1 | 30,801,365 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 17 | 35 | 85 | 119 | 595 | 51,767 | 258,835 | 362,369 | 880,039 | 1,811,845 | 4,400,195 | 6,160,273 | 30,801,365 |
| -1 | -5 | -7 | -17 | -35 | -85 | -119 | -595 | -51,767 | -258,835 | -362,369 | -880,039 | -1,811,845 | -4,400,195 | -6,160,273 | -30,801,365 |
Here are some more numbers to try:
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