A:
Positive:
1 x 304307655 x 608615317 x 179004561 x 49886585 x 358009305 x 997731037 x 293455185 x 5869
Negative:
-1 x -30430765-5 x -6086153-17 x -1790045-61 x -498865-85 x -358009-305 x -99773-1037 x -29345-5185 x -5869
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 30,430,765, 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 | 30,430,765 | |
| -1 | -30,430,765 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 30,430,765.
Example:
1 x 30,430,765 = 30,430,765
and
-1 x -30,430,765 = 30,430,765
Notice both answers equal 30,430,765
With that explanation out of the way, let's continue. Next, we take the number 30,430,765 and divide it by 2:
30,430,765 ÷ 2 = 15,215,382.5
If the quotient is a whole number, then 2 and 15,215,382.5 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 | 30,430,765 | |
| -1 | -30,430,765 |
Now, we try dividing 30,430,765 by 3:
30,430,765 ÷ 3 = 10,143,588.3333
If the quotient is a whole number, then 3 and 10,143,588.3333 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 | 30,430,765 | |
| -1 | -30,430,765 |
Let's try dividing by 4:
30,430,765 ÷ 4 = 7,607,691.25
If the quotient is a whole number, then 4 and 7,607,691.25 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 | 30,430,765 | |
| -1 | 30,430,765 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 61 | 85 | 305 | 1,037 | 5,185 | 5,869 | 29,345 | 99,773 | 358,009 | 498,865 | 1,790,045 | 6,086,153 | 30,430,765 |
| -1 | -5 | -17 | -61 | -85 | -305 | -1,037 | -5,185 | -5,869 | -29,345 | -99,773 | -358,009 | -498,865 | -1,790,045 | -6,086,153 | -30,430,765 |
Here are some more numbers to try:
Try the factor calculator