A:
Positive:
1 x 680627155 x 136125437 x 972324535 x 194464949 x 1389035245 x 277807379 x 179585733 x 928551895 x 359172653 x 256553665 x 185715131 x 13265
Negative:
-1 x -68062715-5 x -13612543-7 x -9723245-35 x -1944649-49 x -1389035-245 x -277807-379 x -179585-733 x -92855-1895 x -35917-2653 x -25655-3665 x -18571-5131 x -13265
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 68,062,715, 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 | 68,062,715 | |
| -1 | -68,062,715 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 68,062,715.
Example:
1 x 68,062,715 = 68,062,715
and
-1 x -68,062,715 = 68,062,715
Notice both answers equal 68,062,715
With that explanation out of the way, let's continue. Next, we take the number 68,062,715 and divide it by 2:
68,062,715 ÷ 2 = 34,031,357.5
If the quotient is a whole number, then 2 and 34,031,357.5 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 | 68,062,715 | |
| -1 | -68,062,715 |
Now, we try dividing 68,062,715 by 3:
68,062,715 ÷ 3 = 22,687,571.6667
If the quotient is a whole number, then 3 and 22,687,571.6667 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 | 68,062,715 | |
| -1 | -68,062,715 |
Let's try dividing by 4:
68,062,715 ÷ 4 = 17,015,678.75
If the quotient is a whole number, then 4 and 17,015,678.75 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 | 68,062,715 | |
| -1 | 68,062,715 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 49 | 245 | 379 | 733 | 1,895 | 2,653 | 3,665 | 5,131 | 13,265 | 18,571 | 25,655 | 35,917 | 92,855 | 179,585 | 277,807 | 1,389,035 | 1,944,649 | 9,723,245 | 13,612,543 | 68,062,715 |
| -1 | -5 | -7 | -35 | -49 | -245 | -379 | -733 | -1,895 | -2,653 | -3,665 | -5,131 | -13,265 | -18,571 | -25,655 | -35,917 | -92,855 | -179,585 | -277,807 | -1,389,035 | -1,944,649 | -9,723,245 | -13,612,543 | -68,062,715 |
Here are some more numbers to try:
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