A:
Positive:
1 x 80165055 x 16033017 x 114521535 x 229043227 x 353151009 x 79451135 x 70631589 x 5045
Negative:
-1 x -8016505-5 x -1603301-7 x -1145215-35 x -229043-227 x -35315-1009 x -7945-1135 x -7063-1589 x -5045
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 8,016,505, 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 | 8,016,505 | |
| -1 | -8,016,505 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 8,016,505.
Example:
1 x 8,016,505 = 8,016,505
and
-1 x -8,016,505 = 8,016,505
Notice both answers equal 8,016,505
With that explanation out of the way, let's continue. Next, we take the number 8,016,505 and divide it by 2:
8,016,505 ÷ 2 = 4,008,252.5
If the quotient is a whole number, then 2 and 4,008,252.5 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 | 8,016,505 | |
| -1 | -8,016,505 |
Now, we try dividing 8,016,505 by 3:
8,016,505 ÷ 3 = 2,672,168.3333
If the quotient is a whole number, then 3 and 2,672,168.3333 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 | 8,016,505 | |
| -1 | -8,016,505 |
Let's try dividing by 4:
8,016,505 ÷ 4 = 2,004,126.25
If the quotient is a whole number, then 4 and 2,004,126.25 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 | 8,016,505 | |
| -1 | 8,016,505 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 227 | 1,009 | 1,135 | 1,589 | 5,045 | 7,063 | 7,945 | 35,315 | 229,043 | 1,145,215 | 1,603,301 | 8,016,505 |
| -1 | -5 | -7 | -35 | -227 | -1,009 | -1,135 | -1,589 | -5,045 | -7,063 | -7,945 | -35,315 | -229,043 | -1,145,215 | -1,603,301 | -8,016,505 |
Here are some more numbers to try:
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