A:
Positive:
1 x 305375155 x 610750359 x 51758561 x 500615295 x 103517305 x 1001231697 x 179953599 x 8485
Negative:
-1 x -30537515-5 x -6107503-59 x -517585-61 x -500615-295 x -103517-305 x -100123-1697 x -17995-3599 x -8485
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 30,537,515, 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 | 30,537,515 | |
| -1 | -30,537,515 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 30,537,515.
Example:
1 x 30,537,515 = 30,537,515
and
-1 x -30,537,515 = 30,537,515
Notice both answers equal 30,537,515
With that explanation out of the way, let's continue. Next, we take the number 30,537,515 and divide it by 2:
30,537,515 ÷ 2 = 15,268,757.5
If the quotient is a whole number, then 2 and 15,268,757.5 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 | 30,537,515 | |
| -1 | -30,537,515 |
Now, we try dividing 30,537,515 by 3:
30,537,515 ÷ 3 = 10,179,171.6667
If the quotient is a whole number, then 3 and 10,179,171.6667 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 | 30,537,515 | |
| -1 | -30,537,515 |
Let's try dividing by 4:
30,537,515 ÷ 4 = 7,634,378.75
If the quotient is a whole number, then 4 and 7,634,378.75 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 | 30,537,515 | |
| -1 | 30,537,515 |
If you did it right, you will end up with this table:
| 1 | 5 | 59 | 61 | 295 | 305 | 1,697 | 3,599 | 8,485 | 17,995 | 100,123 | 103,517 | 500,615 | 517,585 | 6,107,503 | 30,537,515 |
| -1 | -5 | -59 | -61 | -295 | -305 | -1,697 | -3,599 | -8,485 | -17,995 | -100,123 | -103,517 | -500,615 | -517,585 | -6,107,503 | -30,537,515 |
Here are some more numbers to try:
Try the factor calculator