A:
Positive:
1 x 2041204455 x 4082408917 x 1200708585 x 2401417587 x 3477352935 x 695474091 x 498959979 x 20455
Negative:
-1 x -204120445-5 x -40824089-17 x -12007085-85 x -2401417-587 x -347735-2935 x -69547-4091 x -49895-9979 x -20455
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 204,120,445, 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 | 204,120,445 | |
| -1 | -204,120,445 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 204,120,445.
Example:
1 x 204,120,445 = 204,120,445
and
-1 x -204,120,445 = 204,120,445
Notice both answers equal 204,120,445
With that explanation out of the way, let's continue. Next, we take the number 204,120,445 and divide it by 2:
204,120,445 ÷ 2 = 102,060,222.5
If the quotient is a whole number, then 2 and 102,060,222.5 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 | 204,120,445 | |
| -1 | -204,120,445 |
Now, we try dividing 204,120,445 by 3:
204,120,445 ÷ 3 = 68,040,148.3333
If the quotient is a whole number, then 3 and 68,040,148.3333 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 | 204,120,445 | |
| -1 | -204,120,445 |
Let's try dividing by 4:
204,120,445 ÷ 4 = 51,030,111.25
If the quotient is a whole number, then 4 and 51,030,111.25 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 | 204,120,445 | |
| -1 | 204,120,445 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 587 | 2,935 | 4,091 | 9,979 | 20,455 | 49,895 | 69,547 | 347,735 | 2,401,417 | 12,007,085 | 40,824,089 | 204,120,445 |
| -1 | -5 | -17 | -85 | -587 | -2,935 | -4,091 | -9,979 | -20,455 | -49,895 | -69,547 | -347,735 | -2,401,417 | -12,007,085 | -40,824,089 | -204,120,445 |
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