A:
Positive:
1 x 15132555 x 30265117 x 8901519 x 7964585 x 1780395 x 15929323 x 4685937 x 1615
Negative:
-1 x -1513255-5 x -302651-17 x -89015-19 x -79645-85 x -17803-95 x -15929-323 x -4685-937 x -1615
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 1,513,255, 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 | 1,513,255 | |
| -1 | -1,513,255 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,513,255.
Example:
1 x 1,513,255 = 1,513,255
and
-1 x -1,513,255 = 1,513,255
Notice both answers equal 1,513,255
With that explanation out of the way, let's continue. Next, we take the number 1,513,255 and divide it by 2:
1,513,255 ÷ 2 = 756,627.5
If the quotient is a whole number, then 2 and 756,627.5 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 | 1,513,255 | |
| -1 | -1,513,255 |
Now, we try dividing 1,513,255 by 3:
1,513,255 ÷ 3 = 504,418.3333
If the quotient is a whole number, then 3 and 504,418.3333 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 | 1,513,255 | |
| -1 | -1,513,255 |
Let's try dividing by 4:
1,513,255 ÷ 4 = 378,313.75
If the quotient is a whole number, then 4 and 378,313.75 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 | 1,513,255 | |
| -1 | 1,513,255 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 19 | 85 | 95 | 323 | 937 | 1,615 | 4,685 | 15,929 | 17,803 | 79,645 | 89,015 | 302,651 | 1,513,255 |
| -1 | -5 | -17 | -19 | -85 | -95 | -323 | -937 | -1,615 | -4,685 | -15,929 | -17,803 | -79,645 | -89,015 | -302,651 | -1,513,255 |
Here are some more numbers to try:
Try the factor calculator