A:
Positive:
1 x 300786255 x 601572525 x 120314541 x 733625125 x 240629205 x 1467251025 x 293455125 x 5869
Negative:
-1 x -30078625-5 x -6015725-25 x -1203145-41 x -733625-125 x -240629-205 x -146725-1025 x -29345-5125 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 30,078,625, 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 | 30,078,625 | |
| -1 | -30,078,625 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 30,078,625.
Example:
1 x 30,078,625 = 30,078,625
and
-1 x -30,078,625 = 30,078,625
Notice both answers equal 30,078,625
With that explanation out of the way, let's continue. Next, we take the number 30,078,625 and divide it by 2:
30,078,625 ÷ 2 = 15,039,312.5
If the quotient is a whole number, then 2 and 15,039,312.5 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 | 30,078,625 | |
| -1 | -30,078,625 |
Now, we try dividing 30,078,625 by 3:
30,078,625 ÷ 3 = 10,026,208.3333
If the quotient is a whole number, then 3 and 10,026,208.3333 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 | 30,078,625 | |
| -1 | -30,078,625 |
Let's try dividing by 4:
30,078,625 ÷ 4 = 7,519,656.25
If the quotient is a whole number, then 4 and 7,519,656.25 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 | 30,078,625 | |
| -1 | 30,078,625 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 41 | 125 | 205 | 1,025 | 5,125 | 5,869 | 29,345 | 146,725 | 240,629 | 733,625 | 1,203,145 | 6,015,725 | 30,078,625 |
| -1 | -5 | -25 | -41 | -125 | -205 | -1,025 | -5,125 | -5,869 | -29,345 | -146,725 | -240,629 | -733,625 | -1,203,145 | -6,015,725 | -30,078,625 |
Here are some more numbers to try:
Try the factor calculator