A:
Positive:
1 x 2075002555 x 4150005137 x 5608115185 x 1121623773 x 2684351451 x 1430053865 x 536877255 x 28601
Negative:
-1 x -207500255-5 x -41500051-37 x -5608115-185 x -1121623-773 x -268435-1451 x -143005-3865 x -53687-7255 x -28601
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 207,500,255, 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 | 207,500,255 | |
| -1 | -207,500,255 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 207,500,255.
Example:
1 x 207,500,255 = 207,500,255
and
-1 x -207,500,255 = 207,500,255
Notice both answers equal 207,500,255
With that explanation out of the way, let's continue. Next, we take the number 207,500,255 and divide it by 2:
207,500,255 ÷ 2 = 103,750,127.5
If the quotient is a whole number, then 2 and 103,750,127.5 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 | 207,500,255 | |
| -1 | -207,500,255 |
Now, we try dividing 207,500,255 by 3:
207,500,255 ÷ 3 = 69,166,751.6667
If the quotient is a whole number, then 3 and 69,166,751.6667 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 | 207,500,255 | |
| -1 | -207,500,255 |
Let's try dividing by 4:
207,500,255 ÷ 4 = 51,875,063.75
If the quotient is a whole number, then 4 and 51,875,063.75 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 | 207,500,255 | |
| -1 | 207,500,255 |
If you did it right, you will end up with this table:
| 1 | 5 | 37 | 185 | 773 | 1,451 | 3,865 | 7,255 | 28,601 | 53,687 | 143,005 | 268,435 | 1,121,623 | 5,608,115 | 41,500,051 | 207,500,255 |
| -1 | -5 | -37 | -185 | -773 | -1,451 | -3,865 | -7,255 | -28,601 | -53,687 | -143,005 | -268,435 | -1,121,623 | -5,608,115 | -41,500,051 | -207,500,255 |
Here are some more numbers to try:
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