A:
Positive:
1 x 3334002111 x 303091113 x 256461753 x 62905783 x 401687143 x 233147583 x 57187689 x 48389913 x 365171079 x 308992809 x 118694399 x 7579
Negative:
-1 x -33340021-11 x -3030911-13 x -2564617-53 x -629057-83 x -401687-143 x -233147-583 x -57187-689 x -48389-913 x -36517-1079 x -30899-2809 x -11869-4399 x -7579
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 33,340,021, 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 | 33,340,021 | |
| -1 | -33,340,021 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 33,340,021.
Example:
1 x 33,340,021 = 33,340,021
and
-1 x -33,340,021 = 33,340,021
Notice both answers equal 33,340,021
With that explanation out of the way, let's continue. Next, we take the number 33,340,021 and divide it by 2:
33,340,021 ÷ 2 = 16,670,010.5
If the quotient is a whole number, then 2 and 16,670,010.5 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 | 33,340,021 | |
| -1 | -33,340,021 |
Now, we try dividing 33,340,021 by 3:
33,340,021 ÷ 3 = 11,113,340.3333
If the quotient is a whole number, then 3 and 11,113,340.3333 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 | 33,340,021 | |
| -1 | -33,340,021 |
Let's try dividing by 4:
33,340,021 ÷ 4 = 8,335,005.25
If the quotient is a whole number, then 4 and 8,335,005.25 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 | 33,340,021 | |
| -1 | 33,340,021 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 53 | 83 | 143 | 583 | 689 | 913 | 1,079 | 2,809 | 4,399 | 7,579 | 11,869 | 30,899 | 36,517 | 48,389 | 57,187 | 233,147 | 401,687 | 629,057 | 2,564,617 | 3,030,911 | 33,340,021 |
| -1 | -11 | -13 | -53 | -83 | -143 | -583 | -689 | -913 | -1,079 | -2,809 | -4,399 | -7,579 | -11,869 | -30,899 | -36,517 | -48,389 | -57,187 | -233,147 | -401,687 | -629,057 | -2,564,617 | -3,030,911 | -33,340,021 |
Here are some more numbers to try:
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