A:
Positive:
1 x 1040399055 x 2080798147 x 2213615235 x 442723293 x 3550851465 x 710171511 x 688557555 x 13771
Negative:
-1 x -104039905-5 x -20807981-47 x -2213615-235 x -442723-293 x -355085-1465 x -71017-1511 x -68855-7555 x -13771
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 104,039,905, 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 | 104,039,905 | |
| -1 | -104,039,905 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 104,039,905.
Example:
1 x 104,039,905 = 104,039,905
and
-1 x -104,039,905 = 104,039,905
Notice both answers equal 104,039,905
With that explanation out of the way, let's continue. Next, we take the number 104,039,905 and divide it by 2:
104,039,905 ÷ 2 = 52,019,952.5
If the quotient is a whole number, then 2 and 52,019,952.5 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 | 104,039,905 | |
| -1 | -104,039,905 |
Now, we try dividing 104,039,905 by 3:
104,039,905 ÷ 3 = 34,679,968.3333
If the quotient is a whole number, then 3 and 34,679,968.3333 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 | 104,039,905 | |
| -1 | -104,039,905 |
Let's try dividing by 4:
104,039,905 ÷ 4 = 26,009,976.25
If the quotient is a whole number, then 4 and 26,009,976.25 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 | 104,039,905 | |
| -1 | 104,039,905 |
If you did it right, you will end up with this table:
| 1 | 5 | 47 | 235 | 293 | 1,465 | 1,511 | 7,555 | 13,771 | 68,855 | 71,017 | 355,085 | 442,723 | 2,213,615 | 20,807,981 | 104,039,905 |
| -1 | -5 | -47 | -235 | -293 | -1,465 | -1,511 | -7,555 | -13,771 | -68,855 | -71,017 | -355,085 | -442,723 | -2,213,615 | -20,807,981 | -104,039,905 |
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