A:
Positive:
1 x 6852167311 x 622924397 x 706409149 x 459877431 x 1589831067 x 642191639 x 418074741 x 14453
Negative:
-1 x -68521673-11 x -6229243-97 x -706409-149 x -459877-431 x -158983-1067 x -64219-1639 x -41807-4741 x -14453
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 68,521,673, 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 | 68,521,673 | |
| -1 | -68,521,673 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 68,521,673.
Example:
1 x 68,521,673 = 68,521,673
and
-1 x -68,521,673 = 68,521,673
Notice both answers equal 68,521,673
With that explanation out of the way, let's continue. Next, we take the number 68,521,673 and divide it by 2:
68,521,673 ÷ 2 = 34,260,836.5
If the quotient is a whole number, then 2 and 34,260,836.5 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 | 68,521,673 | |
| -1 | -68,521,673 |
Now, we try dividing 68,521,673 by 3:
68,521,673 ÷ 3 = 22,840,557.6667
If the quotient is a whole number, then 3 and 22,840,557.6667 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 | 68,521,673 | |
| -1 | -68,521,673 |
Let's try dividing by 4:
68,521,673 ÷ 4 = 17,130,418.25
If the quotient is a whole number, then 4 and 17,130,418.25 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 | 68,521,673 | |
| -1 | 68,521,673 |
If you did it right, you will end up with this table:
| 1 | 11 | 97 | 149 | 431 | 1,067 | 1,639 | 4,741 | 14,453 | 41,807 | 64,219 | 158,983 | 459,877 | 706,409 | 6,229,243 | 68,521,673 |
| -1 | -11 | -97 | -149 | -431 | -1,067 | -1,639 | -4,741 | -14,453 | -41,807 | -64,219 | -158,983 | -459,877 | -706,409 | -6,229,243 | -68,521,673 |
Here are some more numbers to try:
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