A:
Positive:
1 x 16600155 x 3320037 x 23714535 x 4742943 x 38605215 x 7721301 x 55151103 x 1505
Negative:
-1 x -1660015-5 x -332003-7 x -237145-35 x -47429-43 x -38605-215 x -7721-301 x -5515-1103 x -1505
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 1,660,015, 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 | 1,660,015 | |
| -1 | -1,660,015 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,660,015.
Example:
1 x 1,660,015 = 1,660,015
and
-1 x -1,660,015 = 1,660,015
Notice both answers equal 1,660,015
With that explanation out of the way, let's continue. Next, we take the number 1,660,015 and divide it by 2:
1,660,015 ÷ 2 = 830,007.5
If the quotient is a whole number, then 2 and 830,007.5 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 | 1,660,015 | |
| -1 | -1,660,015 |
Now, we try dividing 1,660,015 by 3:
1,660,015 ÷ 3 = 553,338.3333
If the quotient is a whole number, then 3 and 553,338.3333 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 | 1,660,015 | |
| -1 | -1,660,015 |
Let's try dividing by 4:
1,660,015 ÷ 4 = 415,003.75
If the quotient is a whole number, then 4 and 415,003.75 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 | 1,660,015 | |
| -1 | 1,660,015 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 43 | 215 | 301 | 1,103 | 1,505 | 5,515 | 7,721 | 38,605 | 47,429 | 237,145 | 332,003 | 1,660,015 |
| -1 | -5 | -7 | -35 | -43 | -215 | -301 | -1,103 | -1,505 | -5,515 | -7,721 | -38,605 | -47,429 | -237,145 | -332,003 | -1,660,015 |
Here are some more numbers to try:
Try the factor calculator