A:
Positive:
1 x 15006055 x 30012129 x 5174579 x 18995131 x 11455145 x 10349395 x 3799655 x 2291
Negative:
-1 x -1500605-5 x -300121-29 x -51745-79 x -18995-131 x -11455-145 x -10349-395 x -3799-655 x -2291
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 1,500,605, 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 | 1,500,605 | |
| -1 | -1,500,605 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,500,605.
Example:
1 x 1,500,605 = 1,500,605
and
-1 x -1,500,605 = 1,500,605
Notice both answers equal 1,500,605
With that explanation out of the way, let's continue. Next, we take the number 1,500,605 and divide it by 2:
1,500,605 ÷ 2 = 750,302.5
If the quotient is a whole number, then 2 and 750,302.5 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 | 1,500,605 | |
| -1 | -1,500,605 |
Now, we try dividing 1,500,605 by 3:
1,500,605 ÷ 3 = 500,201.6667
If the quotient is a whole number, then 3 and 500,201.6667 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 | 1,500,605 | |
| -1 | -1,500,605 |
Let's try dividing by 4:
1,500,605 ÷ 4 = 375,151.25
If the quotient is a whole number, then 4 and 375,151.25 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 | 1,500,605 | |
| -1 | 1,500,605 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 79 | 131 | 145 | 395 | 655 | 2,291 | 3,799 | 10,349 | 11,455 | 18,995 | 51,745 | 300,121 | 1,500,605 |
| -1 | -5 | -29 | -79 | -131 | -145 | -395 | -655 | -2,291 | -3,799 | -10,349 | -11,455 | -18,995 | -51,745 | -300,121 | -1,500,605 |
Here are some more numbers to try:
Try the factor calculator