A:
Positive:
1 x 320312155 x 640624331 x 1033265155 x 206653197 x 162595985 x 325191049 x 305355245 x 6107
Negative:
-1 x -32031215-5 x -6406243-31 x -1033265-155 x -206653-197 x -162595-985 x -32519-1049 x -30535-5245 x -6107
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 32,031,215, 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 | 32,031,215 | |
| -1 | -32,031,215 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 32,031,215.
Example:
1 x 32,031,215 = 32,031,215
and
-1 x -32,031,215 = 32,031,215
Notice both answers equal 32,031,215
With that explanation out of the way, let's continue. Next, we take the number 32,031,215 and divide it by 2:
32,031,215 ÷ 2 = 16,015,607.5
If the quotient is a whole number, then 2 and 16,015,607.5 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 | 32,031,215 | |
| -1 | -32,031,215 |
Now, we try dividing 32,031,215 by 3:
32,031,215 ÷ 3 = 10,677,071.6667
If the quotient is a whole number, then 3 and 10,677,071.6667 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 | 32,031,215 | |
| -1 | -32,031,215 |
Let's try dividing by 4:
32,031,215 ÷ 4 = 8,007,803.75
If the quotient is a whole number, then 4 and 8,007,803.75 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 | 32,031,215 | |
| -1 | 32,031,215 |
If you did it right, you will end up with this table:
| 1 | 5 | 31 | 155 | 197 | 985 | 1,049 | 5,245 | 6,107 | 30,535 | 32,519 | 162,595 | 206,653 | 1,033,265 | 6,406,243 | 32,031,215 |
| -1 | -5 | -31 | -155 | -197 | -985 | -1,049 | -5,245 | -6,107 | -30,535 | -32,519 | -162,595 | -206,653 | -1,033,265 | -6,406,243 | -32,031,215 |
Here are some more numbers to try:
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