A:
Positive:
1 x 200334555 x 400669113 x 154103565 x 30820789 x 225095445 x 450191157 x 173153463 x 5785
Negative:
-1 x -20033455-5 x -4006691-13 x -1541035-65 x -308207-89 x -225095-445 x -45019-1157 x -17315-3463 x -5785
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 20,033,455, 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 | 20,033,455 | |
| -1 | -20,033,455 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 20,033,455.
Example:
1 x 20,033,455 = 20,033,455
and
-1 x -20,033,455 = 20,033,455
Notice both answers equal 20,033,455
With that explanation out of the way, let's continue. Next, we take the number 20,033,455 and divide it by 2:
20,033,455 ÷ 2 = 10,016,727.5
If the quotient is a whole number, then 2 and 10,016,727.5 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 | 20,033,455 | |
| -1 | -20,033,455 |
Now, we try dividing 20,033,455 by 3:
20,033,455 ÷ 3 = 6,677,818.3333
If the quotient is a whole number, then 3 and 6,677,818.3333 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 | 20,033,455 | |
| -1 | -20,033,455 |
Let's try dividing by 4:
20,033,455 ÷ 4 = 5,008,363.75
If the quotient is a whole number, then 4 and 5,008,363.75 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 | 20,033,455 | |
| -1 | 20,033,455 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 89 | 445 | 1,157 | 3,463 | 5,785 | 17,315 | 45,019 | 225,095 | 308,207 | 1,541,035 | 4,006,691 | 20,033,455 |
| -1 | -5 | -13 | -65 | -89 | -445 | -1,157 | -3,463 | -5,785 | -17,315 | -45,019 | -225,095 | -308,207 | -1,541,035 | -4,006,691 | -20,033,455 |
Here are some more numbers to try:
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