A:
Positive:
1 x 3011050911 x 273731913 x 2316193143 x 210563193 x 1560131091 x 275992123 x 141832509 x 12001
Negative:
-1 x -30110509-11 x -2737319-13 x -2316193-143 x -210563-193 x -156013-1091 x -27599-2123 x -14183-2509 x -12001
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 30,110,509, 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 | 30,110,509 | |
| -1 | -30,110,509 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 30,110,509.
Example:
1 x 30,110,509 = 30,110,509
and
-1 x -30,110,509 = 30,110,509
Notice both answers equal 30,110,509
With that explanation out of the way, let's continue. Next, we take the number 30,110,509 and divide it by 2:
30,110,509 ÷ 2 = 15,055,254.5
If the quotient is a whole number, then 2 and 15,055,254.5 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 | 30,110,509 | |
| -1 | -30,110,509 |
Now, we try dividing 30,110,509 by 3:
30,110,509 ÷ 3 = 10,036,836.3333
If the quotient is a whole number, then 3 and 10,036,836.3333 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 | 30,110,509 | |
| -1 | -30,110,509 |
Let's try dividing by 4:
30,110,509 ÷ 4 = 7,527,627.25
If the quotient is a whole number, then 4 and 7,527,627.25 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 | 30,110,509 | |
| -1 | 30,110,509 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 143 | 193 | 1,091 | 2,123 | 2,509 | 12,001 | 14,183 | 27,599 | 156,013 | 210,563 | 2,316,193 | 2,737,319 | 30,110,509 |
| -1 | -11 | -13 | -143 | -193 | -1,091 | -2,123 | -2,509 | -12,001 | -14,183 | -27,599 | -156,013 | -210,563 | -2,316,193 | -2,737,319 | -30,110,509 |
Here are some more numbers to try:
Try the factor calculator