A:
Positive:
1 x 1041211555 x 20824231103 x 1010885181 x 575255515 x 202177905 x 1150511117 x 932155585 x 18643
Negative:
-1 x -104121155-5 x -20824231-103 x -1010885-181 x -575255-515 x -202177-905 x -115051-1117 x -93215-5585 x -18643
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 104,121,155, 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 | 104,121,155 | |
| -1 | -104,121,155 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 104,121,155.
Example:
1 x 104,121,155 = 104,121,155
and
-1 x -104,121,155 = 104,121,155
Notice both answers equal 104,121,155
With that explanation out of the way, let's continue. Next, we take the number 104,121,155 and divide it by 2:
104,121,155 ÷ 2 = 52,060,577.5
If the quotient is a whole number, then 2 and 52,060,577.5 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 | 104,121,155 | |
| -1 | -104,121,155 |
Now, we try dividing 104,121,155 by 3:
104,121,155 ÷ 3 = 34,707,051.6667
If the quotient is a whole number, then 3 and 34,707,051.6667 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 | 104,121,155 | |
| -1 | -104,121,155 |
Let's try dividing by 4:
104,121,155 ÷ 4 = 26,030,288.75
If the quotient is a whole number, then 4 and 26,030,288.75 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 | 104,121,155 | |
| -1 | 104,121,155 |
If you did it right, you will end up with this table:
| 1 | 5 | 103 | 181 | 515 | 905 | 1,117 | 5,585 | 18,643 | 93,215 | 115,051 | 202,177 | 575,255 | 1,010,885 | 20,824,231 | 104,121,155 |
| -1 | -5 | -103 | -181 | -515 | -905 | -1,117 | -5,585 | -18,643 | -93,215 | -115,051 | -202,177 | -575,255 | -1,010,885 | -20,824,231 | -104,121,155 |
Here are some more numbers to try:
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