A:
Positive:
1 x 15156355 x 30312711 x 13778517 x 8915555 x 2755785 x 17831187 x 8105935 x 1621
Negative:
-1 x -1515635-5 x -303127-11 x -137785-17 x -89155-55 x -27557-85 x -17831-187 x -8105-935 x -1621
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 1,515,635, 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 | 1,515,635 | |
| -1 | -1,515,635 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,515,635.
Example:
1 x 1,515,635 = 1,515,635
and
-1 x -1,515,635 = 1,515,635
Notice both answers equal 1,515,635
With that explanation out of the way, let's continue. Next, we take the number 1,515,635 and divide it by 2:
1,515,635 ÷ 2 = 757,817.5
If the quotient is a whole number, then 2 and 757,817.5 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 | 1,515,635 | |
| -1 | -1,515,635 |
Now, we try dividing 1,515,635 by 3:
1,515,635 ÷ 3 = 505,211.6667
If the quotient is a whole number, then 3 and 505,211.6667 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 | 1,515,635 | |
| -1 | -1,515,635 |
Let's try dividing by 4:
1,515,635 ÷ 4 = 378,908.75
If the quotient is a whole number, then 4 and 378,908.75 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 | 1,515,635 | |
| -1 | 1,515,635 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 17 | 55 | 85 | 187 | 935 | 1,621 | 8,105 | 17,831 | 27,557 | 89,155 | 137,785 | 303,127 | 1,515,635 |
| -1 | -5 | -11 | -17 | -55 | -85 | -187 | -935 | -1,621 | -8,105 | -17,831 | -27,557 | -89,155 | -137,785 | -303,127 | -1,515,635 |
Here are some more numbers to try:
Try the factor calculator