A:
Positive:
1 x 80068155 x 160136343 x 186205167 x 47945215 x 37241223 x 35905835 x 95891115 x 7181
Negative:
-1 x -8006815-5 x -1601363-43 x -186205-167 x -47945-215 x -37241-223 x -35905-835 x -9589-1115 x -7181
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 8,006,815, 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 | 8,006,815 | |
| -1 | -8,006,815 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 8,006,815.
Example:
1 x 8,006,815 = 8,006,815
and
-1 x -8,006,815 = 8,006,815
Notice both answers equal 8,006,815
With that explanation out of the way, let's continue. Next, we take the number 8,006,815 and divide it by 2:
8,006,815 ÷ 2 = 4,003,407.5
If the quotient is a whole number, then 2 and 4,003,407.5 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 | 8,006,815 | |
| -1 | -8,006,815 |
Now, we try dividing 8,006,815 by 3:
8,006,815 ÷ 3 = 2,668,938.3333
If the quotient is a whole number, then 3 and 2,668,938.3333 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 | 8,006,815 | |
| -1 | -8,006,815 |
Let's try dividing by 4:
8,006,815 ÷ 4 = 2,001,703.75
If the quotient is a whole number, then 4 and 2,001,703.75 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 | 8,006,815 | |
| -1 | 8,006,815 |
If you did it right, you will end up with this table:
| 1 | 5 | 43 | 167 | 215 | 223 | 835 | 1,115 | 7,181 | 9,589 | 35,905 | 37,241 | 47,945 | 186,205 | 1,601,363 | 8,006,815 |
| -1 | -5 | -43 | -167 | -215 | -223 | -835 | -1,115 | -7,181 | -9,589 | -35,905 | -37,241 | -47,945 | -186,205 | -1,601,363 | -8,006,815 |
Here are some more numbers to try:
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