A:
Positive:
1 x 7241511355 x 144830227163 x 4442645181 x 4000835815 x 888529905 x 8001674909 x 14751524545 x 29503
Negative:
-1 x -724151135-5 x -144830227-163 x -4442645-181 x -4000835-815 x -888529-905 x -800167-4909 x -147515-24545 x -29503
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 724,151,135, 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 | 724,151,135 | |
| -1 | -724,151,135 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 724,151,135.
Example:
1 x 724,151,135 = 724,151,135
and
-1 x -724,151,135 = 724,151,135
Notice both answers equal 724,151,135
With that explanation out of the way, let's continue. Next, we take the number 724,151,135 and divide it by 2:
724,151,135 ÷ 2 = 362,075,567.5
If the quotient is a whole number, then 2 and 362,075,567.5 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 | 724,151,135 | |
| -1 | -724,151,135 |
Now, we try dividing 724,151,135 by 3:
724,151,135 ÷ 3 = 241,383,711.6667
If the quotient is a whole number, then 3 and 241,383,711.6667 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 | 724,151,135 | |
| -1 | -724,151,135 |
Let's try dividing by 4:
724,151,135 ÷ 4 = 181,037,783.75
If the quotient is a whole number, then 4 and 181,037,783.75 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 | 724,151,135 | |
| -1 | 724,151,135 |
If you did it right, you will end up with this table:
| 1 | 5 | 163 | 181 | 815 | 905 | 4,909 | 24,545 | 29,503 | 147,515 | 800,167 | 888,529 | 4,000,835 | 4,442,645 | 144,830,227 | 724,151,135 |
| -1 | -5 | -163 | -181 | -815 | -905 | -4,909 | -24,545 | -29,503 | -147,515 | -800,167 | -888,529 | -4,000,835 | -4,442,645 | -144,830,227 | -724,151,135 |
Here are some more numbers to try:
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