A:
Positive:
1 x 307975555 x 615951167 x 459665149 x 206695335 x 91933617 x 49915745 x 413393085 x 9983
Negative:
-1 x -30797555-5 x -6159511-67 x -459665-149 x -206695-335 x -91933-617 x -49915-745 x -41339-3085 x -9983
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 30,797,555, 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 | 30,797,555 | |
| -1 | -30,797,555 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 30,797,555.
Example:
1 x 30,797,555 = 30,797,555
and
-1 x -30,797,555 = 30,797,555
Notice both answers equal 30,797,555
With that explanation out of the way, let's continue. Next, we take the number 30,797,555 and divide it by 2:
30,797,555 ÷ 2 = 15,398,777.5
If the quotient is a whole number, then 2 and 15,398,777.5 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 | 30,797,555 | |
| -1 | -30,797,555 |
Now, we try dividing 30,797,555 by 3:
30,797,555 ÷ 3 = 10,265,851.6667
If the quotient is a whole number, then 3 and 10,265,851.6667 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 | 30,797,555 | |
| -1 | -30,797,555 |
Let's try dividing by 4:
30,797,555 ÷ 4 = 7,699,388.75
If the quotient is a whole number, then 4 and 7,699,388.75 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 | 30,797,555 | |
| -1 | 30,797,555 |
If you did it right, you will end up with this table:
| 1 | 5 | 67 | 149 | 335 | 617 | 745 | 3,085 | 9,983 | 41,339 | 49,915 | 91,933 | 206,695 | 459,665 | 6,159,511 | 30,797,555 |
| -1 | -5 | -67 | -149 | -335 | -617 | -745 | -3,085 | -9,983 | -41,339 | -49,915 | -91,933 | -206,695 | -459,665 | -6,159,511 | -30,797,555 |
Here are some more numbers to try:
Try the factor calculator