A:
Positive:
1 x 151563113 x 11658723 x 6589737 x 40963137 x 11063299 x 5069481 x 3151851 x 1781
Negative:
-1 x -1515631-13 x -116587-23 x -65897-37 x -40963-137 x -11063-299 x -5069-481 x -3151-851 x -1781
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 1,515,631, 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 | 1,515,631 | |
| -1 | -1,515,631 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,515,631.
Example:
1 x 1,515,631 = 1,515,631
and
-1 x -1,515,631 = 1,515,631
Notice both answers equal 1,515,631
With that explanation out of the way, let's continue. Next, we take the number 1,515,631 and divide it by 2:
1,515,631 ÷ 2 = 757,815.5
If the quotient is a whole number, then 2 and 757,815.5 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 | 1,515,631 | |
| -1 | -1,515,631 |
Now, we try dividing 1,515,631 by 3:
1,515,631 ÷ 3 = 505,210.3333
If the quotient is a whole number, then 3 and 505,210.3333 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 | 1,515,631 | |
| -1 | -1,515,631 |
Let's try dividing by 4:
1,515,631 ÷ 4 = 378,907.75
If the quotient is a whole number, then 4 and 378,907.75 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 | 1,515,631 | |
| -1 | 1,515,631 |
If you did it right, you will end up with this table:
| 1 | 13 | 23 | 37 | 137 | 299 | 481 | 851 | 1,781 | 3,151 | 5,069 | 11,063 | 40,963 | 65,897 | 116,587 | 1,515,631 |
| -1 | -13 | -23 | -37 | -137 | -299 | -481 | -851 | -1,781 | -3,151 | -5,069 | -11,063 | -40,963 | -65,897 | -116,587 | -1,515,631 |
Here are some more numbers to try:
Try the factor calculator