A:
Positive:
1 x 1233040155 x 2466080319 x 648968541 x 300741595 x 1297937205 x 601483779 x 1582853895 x 31657
Negative:
-1 x -123304015-5 x -24660803-19 x -6489685-41 x -3007415-95 x -1297937-205 x -601483-779 x -158285-3895 x -31657
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 123,304,015, 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 | 123,304,015 | |
| -1 | -123,304,015 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 123,304,015.
Example:
1 x 123,304,015 = 123,304,015
and
-1 x -123,304,015 = 123,304,015
Notice both answers equal 123,304,015
With that explanation out of the way, let's continue. Next, we take the number 123,304,015 and divide it by 2:
123,304,015 ÷ 2 = 61,652,007.5
If the quotient is a whole number, then 2 and 61,652,007.5 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 | 123,304,015 | |
| -1 | -123,304,015 |
Now, we try dividing 123,304,015 by 3:
123,304,015 ÷ 3 = 41,101,338.3333
If the quotient is a whole number, then 3 and 41,101,338.3333 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 | 123,304,015 | |
| -1 | -123,304,015 |
Let's try dividing by 4:
123,304,015 ÷ 4 = 30,826,003.75
If the quotient is a whole number, then 4 and 30,826,003.75 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 | 123,304,015 | |
| -1 | 123,304,015 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 41 | 95 | 205 | 779 | 3,895 | 31,657 | 158,285 | 601,483 | 1,297,937 | 3,007,415 | 6,489,685 | 24,660,803 | 123,304,015 |
| -1 | -5 | -19 | -41 | -95 | -205 | -779 | -3,895 | -31,657 | -158,285 | -601,483 | -1,297,937 | -3,007,415 | -6,489,685 | -24,660,803 | -123,304,015 |
Here are some more numbers to try:
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