A:
Positive:
1 x 255000055 x 510000171 x 359155109 x 233945355 x 71831545 x 46789659 x 386953295 x 7739
Negative:
-1 x -25500005-5 x -5100001-71 x -359155-109 x -233945-355 x -71831-545 x -46789-659 x -38695-3295 x -7739
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 25,500,005, 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 | 25,500,005 | |
| -1 | -25,500,005 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,500,005.
Example:
1 x 25,500,005 = 25,500,005
and
-1 x -25,500,005 = 25,500,005
Notice both answers equal 25,500,005
With that explanation out of the way, let's continue. Next, we take the number 25,500,005 and divide it by 2:
25,500,005 ÷ 2 = 12,750,002.5
If the quotient is a whole number, then 2 and 12,750,002.5 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 | 25,500,005 | |
| -1 | -25,500,005 |
Now, we try dividing 25,500,005 by 3:
25,500,005 ÷ 3 = 8,500,001.6667
If the quotient is a whole number, then 3 and 8,500,001.6667 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 | 25,500,005 | |
| -1 | -25,500,005 |
Let's try dividing by 4:
25,500,005 ÷ 4 = 6,375,001.25
If the quotient is a whole number, then 4 and 6,375,001.25 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 | 25,500,005 | |
| -1 | 25,500,005 |
If you did it right, you will end up with this table:
| 1 | 5 | 71 | 109 | 355 | 545 | 659 | 3,295 | 7,739 | 38,695 | 46,789 | 71,831 | 233,945 | 359,155 | 5,100,001 | 25,500,005 |
| -1 | -5 | -71 | -109 | -355 | -545 | -659 | -3,295 | -7,739 | -38,695 | -46,789 | -71,831 | -233,945 | -359,155 | -5,100,001 | -25,500,005 |
Here are some more numbers to try:
Try the factor calculator