A:
Positive:
1 x 2031031255 x 4062062525 x 8124125103 x 1971875125 x 1624825515 x 394375625 x 324965631 x 3218752575 x 788753125 x 649933155 x 6437512875 x 15775
Negative:
-1 x -203103125-5 x -40620625-25 x -8124125-103 x -1971875-125 x -1624825-515 x -394375-625 x -324965-631 x -321875-2575 x -78875-3125 x -64993-3155 x -64375-12875 x -15775
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 203,103,125, 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 | 203,103,125 | |
| -1 | -203,103,125 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 203,103,125.
Example:
1 x 203,103,125 = 203,103,125
and
-1 x -203,103,125 = 203,103,125
Notice both answers equal 203,103,125
With that explanation out of the way, let's continue. Next, we take the number 203,103,125 and divide it by 2:
203,103,125 ÷ 2 = 101,551,562.5
If the quotient is a whole number, then 2 and 101,551,562.5 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 | 203,103,125 | |
| -1 | -203,103,125 |
Now, we try dividing 203,103,125 by 3:
203,103,125 ÷ 3 = 67,701,041.6667
If the quotient is a whole number, then 3 and 67,701,041.6667 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 | 203,103,125 | |
| -1 | -203,103,125 |
Let's try dividing by 4:
203,103,125 ÷ 4 = 50,775,781.25
If the quotient is a whole number, then 4 and 50,775,781.25 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 | 203,103,125 | |
| -1 | 203,103,125 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 103 | 125 | 515 | 625 | 631 | 2,575 | 3,125 | 3,155 | 12,875 | 15,775 | 64,375 | 64,993 | 78,875 | 321,875 | 324,965 | 394,375 | 1,624,825 | 1,971,875 | 8,124,125 | 40,620,625 | 203,103,125 |
| -1 | -5 | -25 | -103 | -125 | -515 | -625 | -631 | -2,575 | -3,125 | -3,155 | -12,875 | -15,775 | -64,375 | -64,993 | -78,875 | -321,875 | -324,965 | -394,375 | -1,624,825 | -1,971,875 | -8,124,125 | -40,620,625 | -203,103,125 |
Here are some more numbers to try:
Try the factor calculator