A:
Positive:
1 x 324908155 x 64981637 x 464154535 x 928309911 x 356651019 x 318854555 x 71335095 x 6377
Negative:
-1 x -32490815-5 x -6498163-7 x -4641545-35 x -928309-911 x -35665-1019 x -31885-4555 x -7133-5095 x -6377
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 32,490,815, 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 | 32,490,815 | |
| -1 | -32,490,815 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 32,490,815.
Example:
1 x 32,490,815 = 32,490,815
and
-1 x -32,490,815 = 32,490,815
Notice both answers equal 32,490,815
With that explanation out of the way, let's continue. Next, we take the number 32,490,815 and divide it by 2:
32,490,815 ÷ 2 = 16,245,407.5
If the quotient is a whole number, then 2 and 16,245,407.5 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 | 32,490,815 | |
| -1 | -32,490,815 |
Now, we try dividing 32,490,815 by 3:
32,490,815 ÷ 3 = 10,830,271.6667
If the quotient is a whole number, then 3 and 10,830,271.6667 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 | 32,490,815 | |
| -1 | -32,490,815 |
Let's try dividing by 4:
32,490,815 ÷ 4 = 8,122,703.75
If the quotient is a whole number, then 4 and 8,122,703.75 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 | 32,490,815 | |
| -1 | 32,490,815 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 911 | 1,019 | 4,555 | 5,095 | 6,377 | 7,133 | 31,885 | 35,665 | 928,309 | 4,641,545 | 6,498,163 | 32,490,815 |
| -1 | -5 | -7 | -35 | -911 | -1,019 | -4,555 | -5,095 | -6,377 | -7,133 | -31,885 | -35,665 | -928,309 | -4,641,545 | -6,498,163 | -32,490,815 |
Here are some more numbers to try:
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