A:
Positive:
1 x 203232197 x 290331743 x 472633251 x 80969269 x 75551301 x 675191757 x 115671883 x 10793
Negative:
-1 x -20323219-7 x -2903317-43 x -472633-251 x -80969-269 x -75551-301 x -67519-1757 x -11567-1883 x -10793
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 20,323,219, 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 | 20,323,219 | |
| -1 | -20,323,219 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 20,323,219.
Example:
1 x 20,323,219 = 20,323,219
and
-1 x -20,323,219 = 20,323,219
Notice both answers equal 20,323,219
With that explanation out of the way, let's continue. Next, we take the number 20,323,219 and divide it by 2:
20,323,219 ÷ 2 = 10,161,609.5
If the quotient is a whole number, then 2 and 10,161,609.5 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 | 20,323,219 | |
| -1 | -20,323,219 |
Now, we try dividing 20,323,219 by 3:
20,323,219 ÷ 3 = 6,774,406.3333
If the quotient is a whole number, then 3 and 6,774,406.3333 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 | 20,323,219 | |
| -1 | -20,323,219 |
Let's try dividing by 4:
20,323,219 ÷ 4 = 5,080,804.75
If the quotient is a whole number, then 4 and 5,080,804.75 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 | 20,323,219 | |
| -1 | 20,323,219 |
If you did it right, you will end up with this table:
| 1 | 7 | 43 | 251 | 269 | 301 | 1,757 | 1,883 | 10,793 | 11,567 | 67,519 | 75,551 | 80,969 | 472,633 | 2,903,317 | 20,323,219 |
| -1 | -7 | -43 | -251 | -269 | -301 | -1,757 | -1,883 | -10,793 | -11,567 | -67,519 | -75,551 | -80,969 | -472,633 | -2,903,317 | -20,323,219 |
Here are some more numbers to try:
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