A:
Positive:
1 x 72663666117 x 4274333343 x 16898527731 x 9940311849 x 39298923117 x 31433
Negative:
-1 x -726636661-17 x -42743333-43 x -16898527-731 x -994031-1849 x -392989-23117 x -31433
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 726,636,661, 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 | 726,636,661 | |
| -1 | -726,636,661 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 726,636,661.
Example:
1 x 726,636,661 = 726,636,661
and
-1 x -726,636,661 = 726,636,661
Notice both answers equal 726,636,661
With that explanation out of the way, let's continue. Next, we take the number 726,636,661 and divide it by 2:
726,636,661 ÷ 2 = 363,318,330.5
If the quotient is a whole number, then 2 and 363,318,330.5 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 | 726,636,661 | |
| -1 | -726,636,661 |
Now, we try dividing 726,636,661 by 3:
726,636,661 ÷ 3 = 242,212,220.3333
If the quotient is a whole number, then 3 and 242,212,220.3333 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 | 726,636,661 | |
| -1 | -726,636,661 |
Let's try dividing by 4:
726,636,661 ÷ 4 = 181,659,165.25
If the quotient is a whole number, then 4 and 181,659,165.25 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 | 726,636,661 | |
| -1 | 726,636,661 |
If you did it right, you will end up with this table:
| 1 | 17 | 43 | 731 | 1,849 | 23,117 | 31,433 | 392,989 | 994,031 | 16,898,527 | 42,743,333 | 726,636,661 |
| -1 | -17 | -43 | -731 | -1,849 | -23,117 | -31,433 | -392,989 | -994,031 | -16,898,527 | -42,743,333 | -726,636,661 |
Here are some more numbers to try:
Try the factor calculator