A:
Positive:
1 x 6889179713 x 529936971 x 970307101 x 682097739 x 93223923 x 746391313 x 524697171 x 9607
Negative:
-1 x -68891797-13 x -5299369-71 x -970307-101 x -682097-739 x -93223-923 x -74639-1313 x -52469-7171 x -9607
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 68,891,797, 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 | 68,891,797 | |
| -1 | -68,891,797 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 68,891,797.
Example:
1 x 68,891,797 = 68,891,797
and
-1 x -68,891,797 = 68,891,797
Notice both answers equal 68,891,797
With that explanation out of the way, let's continue. Next, we take the number 68,891,797 and divide it by 2:
68,891,797 ÷ 2 = 34,445,898.5
If the quotient is a whole number, then 2 and 34,445,898.5 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 | 68,891,797 | |
| -1 | -68,891,797 |
Now, we try dividing 68,891,797 by 3:
68,891,797 ÷ 3 = 22,963,932.3333
If the quotient is a whole number, then 3 and 22,963,932.3333 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 | 68,891,797 | |
| -1 | -68,891,797 |
Let's try dividing by 4:
68,891,797 ÷ 4 = 17,222,949.25
If the quotient is a whole number, then 4 and 17,222,949.25 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 | 68,891,797 | |
| -1 | 68,891,797 |
If you did it right, you will end up with this table:
| 1 | 13 | 71 | 101 | 739 | 923 | 1,313 | 7,171 | 9,607 | 52,469 | 74,639 | 93,223 | 682,097 | 970,307 | 5,299,369 | 68,891,797 |
| -1 | -13 | -71 | -101 | -739 | -923 | -1,313 | -7,171 | -9,607 | -52,469 | -74,639 | -93,223 | -682,097 | -970,307 | -5,299,369 | -68,891,797 |
Here are some more numbers to try:
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