A:
Positive:
1 x 155503755 x 311007525 x 62201531 x 501625125 x 124403155 x 100325775 x 200653875 x 4013
Negative:
-1 x -15550375-5 x -3110075-25 x -622015-31 x -501625-125 x -124403-155 x -100325-775 x -20065-3875 x -4013
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 15,550,375, 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 | 15,550,375 | |
| -1 | -15,550,375 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,550,375.
Example:
1 x 15,550,375 = 15,550,375
and
-1 x -15,550,375 = 15,550,375
Notice both answers equal 15,550,375
With that explanation out of the way, let's continue. Next, we take the number 15,550,375 and divide it by 2:
15,550,375 ÷ 2 = 7,775,187.5
If the quotient is a whole number, then 2 and 7,775,187.5 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 | 15,550,375 | |
| -1 | -15,550,375 |
Now, we try dividing 15,550,375 by 3:
15,550,375 ÷ 3 = 5,183,458.3333
If the quotient is a whole number, then 3 and 5,183,458.3333 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 | 15,550,375 | |
| -1 | -15,550,375 |
Let's try dividing by 4:
15,550,375 ÷ 4 = 3,887,593.75
If the quotient is a whole number, then 4 and 3,887,593.75 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 | 15,550,375 | |
| -1 | 15,550,375 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 31 | 125 | 155 | 775 | 3,875 | 4,013 | 20,065 | 100,325 | 124,403 | 501,625 | 622,015 | 3,110,075 | 15,550,375 |
| -1 | -5 | -25 | -31 | -125 | -155 | -775 | -3,875 | -4,013 | -20,065 | -100,325 | -124,403 | -501,625 | -622,015 | -3,110,075 | -15,550,375 |
Here are some more numbers to try:
Try the factor calculator