A:
Positive:
1 x 2009274897 x 2870392719 x 1057513149 x 4100561107 x 1877827133 x 1510733749 x 268261931 x 2158192017 x 996172033 x 988335243 x 3832314119 x 14231
Negative:
-1 x -200927489-7 x -28703927-19 x -10575131-49 x -4100561-107 x -1877827-133 x -1510733-749 x -268261-931 x -215819-2017 x -99617-2033 x -98833-5243 x -38323-14119 x -14231
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 200,927,489, 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 | 200,927,489 | |
| -1 | -200,927,489 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 200,927,489.
Example:
1 x 200,927,489 = 200,927,489
and
-1 x -200,927,489 = 200,927,489
Notice both answers equal 200,927,489
With that explanation out of the way, let's continue. Next, we take the number 200,927,489 and divide it by 2:
200,927,489 ÷ 2 = 100,463,744.5
If the quotient is a whole number, then 2 and 100,463,744.5 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 | 200,927,489 | |
| -1 | -200,927,489 |
Now, we try dividing 200,927,489 by 3:
200,927,489 ÷ 3 = 66,975,829.6667
If the quotient is a whole number, then 3 and 66,975,829.6667 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 | 200,927,489 | |
| -1 | -200,927,489 |
Let's try dividing by 4:
200,927,489 ÷ 4 = 50,231,872.25
If the quotient is a whole number, then 4 and 50,231,872.25 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 | 200,927,489 | |
| -1 | 200,927,489 |
If you did it right, you will end up with this table:
| 1 | 7 | 19 | 49 | 107 | 133 | 749 | 931 | 2,017 | 2,033 | 5,243 | 14,119 | 14,231 | 38,323 | 98,833 | 99,617 | 215,819 | 268,261 | 1,510,733 | 1,877,827 | 4,100,561 | 10,575,131 | 28,703,927 | 200,927,489 |
| -1 | -7 | -19 | -49 | -107 | -133 | -749 | -931 | -2,017 | -2,033 | -5,243 | -14,119 | -14,231 | -38,323 | -98,833 | -99,617 | -215,819 | -268,261 | -1,510,733 | -1,877,827 | -4,100,561 | -10,575,131 | -28,703,927 | -200,927,489 |
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