A:
Positive:
1 x 2029322317 x 119371953 x 382891101 x 200923223 x 91001901 x 225231717 x 118193791 x 5353
Negative:
-1 x -20293223-17 x -1193719-53 x -382891-101 x -200923-223 x -91001-901 x -22523-1717 x -11819-3791 x -5353
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 20,293,223, 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 | 20,293,223 | |
| -1 | -20,293,223 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 20,293,223.
Example:
1 x 20,293,223 = 20,293,223
and
-1 x -20,293,223 = 20,293,223
Notice both answers equal 20,293,223
With that explanation out of the way, let's continue. Next, we take the number 20,293,223 and divide it by 2:
20,293,223 ÷ 2 = 10,146,611.5
If the quotient is a whole number, then 2 and 10,146,611.5 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 | 20,293,223 | |
| -1 | -20,293,223 |
Now, we try dividing 20,293,223 by 3:
20,293,223 ÷ 3 = 6,764,407.6667
If the quotient is a whole number, then 3 and 6,764,407.6667 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 | 20,293,223 | |
| -1 | -20,293,223 |
Let's try dividing by 4:
20,293,223 ÷ 4 = 5,073,305.75
If the quotient is a whole number, then 4 and 5,073,305.75 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 | 20,293,223 | |
| -1 | 20,293,223 |
If you did it right, you will end up with this table:
| 1 | 17 | 53 | 101 | 223 | 901 | 1,717 | 3,791 | 5,353 | 11,819 | 22,523 | 91,001 | 200,923 | 382,891 | 1,193,719 | 20,293,223 |
| -1 | -17 | -53 | -101 | -223 | -901 | -1,717 | -3,791 | -5,353 | -11,819 | -22,523 | -91,001 | -200,923 | -382,891 | -1,193,719 | -20,293,223 |
Here are some more numbers to try:
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