A:
Positive:
1 x 2338720155 x 4677440313 x 1799015565 x 3598031137 x 1707095685 x 3414191781 x 1313158905 x 26263
Negative:
-1 x -233872015-5 x -46774403-13 x -17990155-65 x -3598031-137 x -1707095-685 x -341419-1781 x -131315-8905 x -26263
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 233,872,015, 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 | 233,872,015 | |
| -1 | -233,872,015 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 233,872,015.
Example:
1 x 233,872,015 = 233,872,015
and
-1 x -233,872,015 = 233,872,015
Notice both answers equal 233,872,015
With that explanation out of the way, let's continue. Next, we take the number 233,872,015 and divide it by 2:
233,872,015 ÷ 2 = 116,936,007.5
If the quotient is a whole number, then 2 and 116,936,007.5 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 | 233,872,015 | |
| -1 | -233,872,015 |
Now, we try dividing 233,872,015 by 3:
233,872,015 ÷ 3 = 77,957,338.3333
If the quotient is a whole number, then 3 and 77,957,338.3333 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 | 233,872,015 | |
| -1 | -233,872,015 |
Let's try dividing by 4:
233,872,015 ÷ 4 = 58,468,003.75
If the quotient is a whole number, then 4 and 58,468,003.75 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 | 233,872,015 | |
| -1 | 233,872,015 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 137 | 685 | 1,781 | 8,905 | 26,263 | 131,315 | 341,419 | 1,707,095 | 3,598,031 | 17,990,155 | 46,774,403 | 233,872,015 |
| -1 | -5 | -13 | -65 | -137 | -685 | -1,781 | -8,905 | -26,263 | -131,315 | -341,419 | -1,707,095 | -3,598,031 | -17,990,155 | -46,774,403 | -233,872,015 |
Here are some more numbers to try:
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