A:
Positive:
1 x 20644664313 x 1588051123 x 897594137 x 5579639299 x 690457481 x 429203851 x 24259311063 x 18661
Negative:
-1 x -206446643-13 x -15880511-23 x -8975941-37 x -5579639-299 x -690457-481 x -429203-851 x -242593-11063 x -18661
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 206,446,643, 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 | 206,446,643 | |
| -1 | -206,446,643 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 206,446,643.
Example:
1 x 206,446,643 = 206,446,643
and
-1 x -206,446,643 = 206,446,643
Notice both answers equal 206,446,643
With that explanation out of the way, let's continue. Next, we take the number 206,446,643 and divide it by 2:
206,446,643 ÷ 2 = 103,223,321.5
If the quotient is a whole number, then 2 and 103,223,321.5 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 | 206,446,643 | |
| -1 | -206,446,643 |
Now, we try dividing 206,446,643 by 3:
206,446,643 ÷ 3 = 68,815,547.6667
If the quotient is a whole number, then 3 and 68,815,547.6667 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 | 206,446,643 | |
| -1 | -206,446,643 |
Let's try dividing by 4:
206,446,643 ÷ 4 = 51,611,660.75
If the quotient is a whole number, then 4 and 51,611,660.75 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 | 206,446,643 | |
| -1 | 206,446,643 |
If you did it right, you will end up with this table:
| 1 | 13 | 23 | 37 | 299 | 481 | 851 | 11,063 | 18,661 | 242,593 | 429,203 | 690,457 | 5,579,639 | 8,975,941 | 15,880,511 | 206,446,643 |
| -1 | -13 | -23 | -37 | -299 | -481 | -851 | -11,063 | -18,661 | -242,593 | -429,203 | -690,457 | -5,579,639 | -8,975,941 | -15,880,511 | -206,446,643 |
Here are some more numbers to try:
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