A:
Positive:
1 x 204696255 x 409392511 x 186087525 x 81878555 x 372175125 x 163757275 x 744351375 x 14887
Negative:
-1 x -20469625-5 x -4093925-11 x -1860875-25 x -818785-55 x -372175-125 x -163757-275 x -74435-1375 x -14887
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 20,469,625, 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 | 20,469,625 | |
| -1 | -20,469,625 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 20,469,625.
Example:
1 x 20,469,625 = 20,469,625
and
-1 x -20,469,625 = 20,469,625
Notice both answers equal 20,469,625
With that explanation out of the way, let's continue. Next, we take the number 20,469,625 and divide it by 2:
20,469,625 ÷ 2 = 10,234,812.5
If the quotient is a whole number, then 2 and 10,234,812.5 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 | 20,469,625 | |
| -1 | -20,469,625 |
Now, we try dividing 20,469,625 by 3:
20,469,625 ÷ 3 = 6,823,208.3333
If the quotient is a whole number, then 3 and 6,823,208.3333 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 | 20,469,625 | |
| -1 | -20,469,625 |
Let's try dividing by 4:
20,469,625 ÷ 4 = 5,117,406.25
If the quotient is a whole number, then 4 and 5,117,406.25 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 | 20,469,625 | |
| -1 | 20,469,625 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 25 | 55 | 125 | 275 | 1,375 | 14,887 | 74,435 | 163,757 | 372,175 | 818,785 | 1,860,875 | 4,093,925 | 20,469,625 |
| -1 | -5 | -11 | -25 | -55 | -125 | -275 | -1,375 | -14,887 | -74,435 | -163,757 | -372,175 | -818,785 | -1,860,875 | -4,093,925 | -20,469,625 |
Here are some more numbers to try:
Try the factor calculator