A:
Positive:
1 x 20620301911 x 1874572953 x 389062367 x 3077657583 x 353693737 x 2797873551 x 580695279 x 39061
Negative:
-1 x -206203019-11 x -18745729-53 x -3890623-67 x -3077657-583 x -353693-737 x -279787-3551 x -58069-5279 x -39061
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 206,203,019, 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 | 206,203,019 | |
| -1 | -206,203,019 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 206,203,019.
Example:
1 x 206,203,019 = 206,203,019
and
-1 x -206,203,019 = 206,203,019
Notice both answers equal 206,203,019
With that explanation out of the way, let's continue. Next, we take the number 206,203,019 and divide it by 2:
206,203,019 ÷ 2 = 103,101,509.5
If the quotient is a whole number, then 2 and 103,101,509.5 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 | 206,203,019 | |
| -1 | -206,203,019 |
Now, we try dividing 206,203,019 by 3:
206,203,019 ÷ 3 = 68,734,339.6667
If the quotient is a whole number, then 3 and 68,734,339.6667 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 | 206,203,019 | |
| -1 | -206,203,019 |
Let's try dividing by 4:
206,203,019 ÷ 4 = 51,550,754.75
If the quotient is a whole number, then 4 and 51,550,754.75 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 | 206,203,019 | |
| -1 | 206,203,019 |
If you did it right, you will end up with this table:
| 1 | 11 | 53 | 67 | 583 | 737 | 3,551 | 5,279 | 39,061 | 58,069 | 279,787 | 353,693 | 3,077,657 | 3,890,623 | 18,745,729 | 206,203,019 |
| -1 | -11 | -53 | -67 | -583 | -737 | -3,551 | -5,279 | -39,061 | -58,069 | -279,787 | -353,693 | -3,077,657 | -3,890,623 | -18,745,729 | -206,203,019 |
Here are some more numbers to try:
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