A:
Positive:
1 x 15088455 x 30176913 x 11606565 x 23213139 x 10855167 x 9035695 x 2171835 x 1807
Negative:
-1 x -1508845-5 x -301769-13 x -116065-65 x -23213-139 x -10855-167 x -9035-695 x -2171-835 x -1807
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 1,508,845, 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 | 1,508,845 | |
| -1 | -1,508,845 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,508,845.
Example:
1 x 1,508,845 = 1,508,845
and
-1 x -1,508,845 = 1,508,845
Notice both answers equal 1,508,845
With that explanation out of the way, let's continue. Next, we take the number 1,508,845 and divide it by 2:
1,508,845 ÷ 2 = 754,422.5
If the quotient is a whole number, then 2 and 754,422.5 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 | 1,508,845 | |
| -1 | -1,508,845 |
Now, we try dividing 1,508,845 by 3:
1,508,845 ÷ 3 = 502,948.3333
If the quotient is a whole number, then 3 and 502,948.3333 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 | 1,508,845 | |
| -1 | -1,508,845 |
Let's try dividing by 4:
1,508,845 ÷ 4 = 377,211.25
If the quotient is a whole number, then 4 and 377,211.25 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 | 1,508,845 | |
| -1 | 1,508,845 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 139 | 167 | 695 | 835 | 1,807 | 2,171 | 9,035 | 10,855 | 23,213 | 116,065 | 301,769 | 1,508,845 |
| -1 | -5 | -13 | -65 | -139 | -167 | -695 | -835 | -1,807 | -2,171 | -9,035 | -10,855 | -23,213 | -116,065 | -301,769 | -1,508,845 |
Here are some more numbers to try:
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