A:
Positive:
1 x 7173186855 x 14346373719 x 3775361595 x 7550723283 x 25346951415 x 5069395377 x 13340526681 x 26885
Negative:
-1 x -717318685-5 x -143463737-19 x -37753615-95 x -7550723-283 x -2534695-1415 x -506939-5377 x -133405-26681 x -26885
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 717,318,685, 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 | 717,318,685 | |
| -1 | -717,318,685 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 717,318,685.
Example:
1 x 717,318,685 = 717,318,685
and
-1 x -717,318,685 = 717,318,685
Notice both answers equal 717,318,685
With that explanation out of the way, let's continue. Next, we take the number 717,318,685 and divide it by 2:
717,318,685 ÷ 2 = 358,659,342.5
If the quotient is a whole number, then 2 and 358,659,342.5 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 | 717,318,685 | |
| -1 | -717,318,685 |
Now, we try dividing 717,318,685 by 3:
717,318,685 ÷ 3 = 239,106,228.3333
If the quotient is a whole number, then 3 and 239,106,228.3333 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 | 717,318,685 | |
| -1 | -717,318,685 |
Let's try dividing by 4:
717,318,685 ÷ 4 = 179,329,671.25
If the quotient is a whole number, then 4 and 179,329,671.25 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 | 717,318,685 | |
| -1 | 717,318,685 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 95 | 283 | 1,415 | 5,377 | 26,681 | 26,885 | 133,405 | 506,939 | 2,534,695 | 7,550,723 | 37,753,615 | 143,463,737 | 717,318,685 |
| -1 | -5 | -19 | -95 | -283 | -1,415 | -5,377 | -26,681 | -26,885 | -133,405 | -506,939 | -2,534,695 | -7,550,723 | -37,753,615 | -143,463,737 | -717,318,685 |
Here are some more numbers to try:
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