A:
Positive:
1 x 7175451055 x 14350902173 x 9829385139 x 5162195365 x 1965877695 x 103243910147 x 7071514143 x 50735
Negative:
-1 x -717545105-5 x -143509021-73 x -9829385-139 x -5162195-365 x -1965877-695 x -1032439-10147 x -70715-14143 x -50735
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 717,545,105, 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 | 717,545,105 | |
| -1 | -717,545,105 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 717,545,105.
Example:
1 x 717,545,105 = 717,545,105
and
-1 x -717,545,105 = 717,545,105
Notice both answers equal 717,545,105
With that explanation out of the way, let's continue. Next, we take the number 717,545,105 and divide it by 2:
717,545,105 ÷ 2 = 358,772,552.5
If the quotient is a whole number, then 2 and 358,772,552.5 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 | 717,545,105 | |
| -1 | -717,545,105 |
Now, we try dividing 717,545,105 by 3:
717,545,105 ÷ 3 = 239,181,701.6667
If the quotient is a whole number, then 3 and 239,181,701.6667 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 | 717,545,105 | |
| -1 | -717,545,105 |
Let's try dividing by 4:
717,545,105 ÷ 4 = 179,386,276.25
If the quotient is a whole number, then 4 and 179,386,276.25 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 | 717,545,105 | |
| -1 | 717,545,105 |
If you did it right, you will end up with this table:
| 1 | 5 | 73 | 139 | 365 | 695 | 10,147 | 14,143 | 50,735 | 70,715 | 1,032,439 | 1,965,877 | 5,162,195 | 9,829,385 | 143,509,021 | 717,545,105 |
| -1 | -5 | -73 | -139 | -365 | -695 | -10,147 | -14,143 | -50,735 | -70,715 | -1,032,439 | -1,965,877 | -5,162,195 | -9,829,385 | -143,509,021 | -717,545,105 |
Here are some more numbers to try:
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