A:
Positive:
1 x 200930455 x 40186097 x 287043535 x 574087317 x 633851585 x 126771811 x 110952219 x 9055
Negative:
-1 x -20093045-5 x -4018609-7 x -2870435-35 x -574087-317 x -63385-1585 x -12677-1811 x -11095-2219 x -9055
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 20,093,045, 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 | 20,093,045 | |
| -1 | -20,093,045 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 20,093,045.
Example:
1 x 20,093,045 = 20,093,045
and
-1 x -20,093,045 = 20,093,045
Notice both answers equal 20,093,045
With that explanation out of the way, let's continue. Next, we take the number 20,093,045 and divide it by 2:
20,093,045 ÷ 2 = 10,046,522.5
If the quotient is a whole number, then 2 and 10,046,522.5 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 | 20,093,045 | |
| -1 | -20,093,045 |
Now, we try dividing 20,093,045 by 3:
20,093,045 ÷ 3 = 6,697,681.6667
If the quotient is a whole number, then 3 and 6,697,681.6667 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 | 20,093,045 | |
| -1 | -20,093,045 |
Let's try dividing by 4:
20,093,045 ÷ 4 = 5,023,261.25
If the quotient is a whole number, then 4 and 5,023,261.25 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 | 20,093,045 | |
| -1 | 20,093,045 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 317 | 1,585 | 1,811 | 2,219 | 9,055 | 11,095 | 12,677 | 63,385 | 574,087 | 2,870,435 | 4,018,609 | 20,093,045 |
| -1 | -5 | -7 | -35 | -317 | -1,585 | -1,811 | -2,219 | -9,055 | -11,095 | -12,677 | -63,385 | -574,087 | -2,870,435 | -4,018,609 | -20,093,045 |
Here are some more numbers to try:
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