A:
Positive:
1 x 331550155 x 663100317 x 195029585 x 390059163 x 203405815 x 406812393 x 138552771 x 11965
Negative:
-1 x -33155015-5 x -6631003-17 x -1950295-85 x -390059-163 x -203405-815 x -40681-2393 x -13855-2771 x -11965
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 33,155,015, 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 | 33,155,015 | |
| -1 | -33,155,015 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 33,155,015.
Example:
1 x 33,155,015 = 33,155,015
and
-1 x -33,155,015 = 33,155,015
Notice both answers equal 33,155,015
With that explanation out of the way, let's continue. Next, we take the number 33,155,015 and divide it by 2:
33,155,015 ÷ 2 = 16,577,507.5
If the quotient is a whole number, then 2 and 16,577,507.5 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 | 33,155,015 | |
| -1 | -33,155,015 |
Now, we try dividing 33,155,015 by 3:
33,155,015 ÷ 3 = 11,051,671.6667
If the quotient is a whole number, then 3 and 11,051,671.6667 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 | 33,155,015 | |
| -1 | -33,155,015 |
Let's try dividing by 4:
33,155,015 ÷ 4 = 8,288,753.75
If the quotient is a whole number, then 4 and 8,288,753.75 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 | 33,155,015 | |
| -1 | 33,155,015 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 163 | 815 | 2,393 | 2,771 | 11,965 | 13,855 | 40,681 | 203,405 | 390,059 | 1,950,295 | 6,631,003 | 33,155,015 |
| -1 | -5 | -17 | -85 | -163 | -815 | -2,393 | -2,771 | -11,965 | -13,855 | -40,681 | -203,405 | -390,059 | -1,950,295 | -6,631,003 | -33,155,015 |
Here are some more numbers to try:
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