A:
Positive:
1 x 2006536155 x 4013072389 x 2254535211 x 950965445 x 4509071055 x 1901932137 x 9389510685 x 18779
Negative:
-1 x -200653615-5 x -40130723-89 x -2254535-211 x -950965-445 x -450907-1055 x -190193-2137 x -93895-10685 x -18779
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 200,653,615, 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 | 200,653,615 | |
| -1 | -200,653,615 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 200,653,615.
Example:
1 x 200,653,615 = 200,653,615
and
-1 x -200,653,615 = 200,653,615
Notice both answers equal 200,653,615
With that explanation out of the way, let's continue. Next, we take the number 200,653,615 and divide it by 2:
200,653,615 ÷ 2 = 100,326,807.5
If the quotient is a whole number, then 2 and 100,326,807.5 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 | 200,653,615 | |
| -1 | -200,653,615 |
Now, we try dividing 200,653,615 by 3:
200,653,615 ÷ 3 = 66,884,538.3333
If the quotient is a whole number, then 3 and 66,884,538.3333 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 | 200,653,615 | |
| -1 | -200,653,615 |
Let's try dividing by 4:
200,653,615 ÷ 4 = 50,163,403.75
If the quotient is a whole number, then 4 and 50,163,403.75 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 | 200,653,615 | |
| -1 | 200,653,615 |
If you did it right, you will end up with this table:
| 1 | 5 | 89 | 211 | 445 | 1,055 | 2,137 | 10,685 | 18,779 | 93,895 | 190,193 | 450,907 | 950,965 | 2,254,535 | 40,130,723 | 200,653,615 |
| -1 | -5 | -89 | -211 | -445 | -1,055 | -2,137 | -10,685 | -18,779 | -93,895 | -190,193 | -450,907 | -950,965 | -2,254,535 | -40,130,723 | -200,653,615 |
Here are some more numbers to try:
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