A:
Positive:
1 x 686470337 x 980671913 x 528054191 x 754363487 x 1409591549 x 443173409 x 201376331 x 10843
Negative:
-1 x -68647033-7 x -9806719-13 x -5280541-91 x -754363-487 x -140959-1549 x -44317-3409 x -20137-6331 x -10843
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 68,647,033, 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 | 68,647,033 | |
| -1 | -68,647,033 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 68,647,033.
Example:
1 x 68,647,033 = 68,647,033
and
-1 x -68,647,033 = 68,647,033
Notice both answers equal 68,647,033
With that explanation out of the way, let's continue. Next, we take the number 68,647,033 and divide it by 2:
68,647,033 ÷ 2 = 34,323,516.5
If the quotient is a whole number, then 2 and 34,323,516.5 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 | 68,647,033 | |
| -1 | -68,647,033 |
Now, we try dividing 68,647,033 by 3:
68,647,033 ÷ 3 = 22,882,344.3333
If the quotient is a whole number, then 3 and 22,882,344.3333 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 | 68,647,033 | |
| -1 | -68,647,033 |
Let's try dividing by 4:
68,647,033 ÷ 4 = 17,161,758.25
If the quotient is a whole number, then 4 and 17,161,758.25 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 | 68,647,033 | |
| -1 | 68,647,033 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 91 | 487 | 1,549 | 3,409 | 6,331 | 10,843 | 20,137 | 44,317 | 140,959 | 754,363 | 5,280,541 | 9,806,719 | 68,647,033 |
| -1 | -7 | -13 | -91 | -487 | -1,549 | -3,409 | -6,331 | -10,843 | -20,137 | -44,317 | -140,959 | -754,363 | -5,280,541 | -9,806,719 | -68,647,033 |
Here are some more numbers to try:
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