A:
Positive:
1 x 181093017 x 258704317 x 106525331 x 584171119 x 152179217 x 83453527 x 343633689 x 4909
Negative:
-1 x -18109301-7 x -2587043-17 x -1065253-31 x -584171-119 x -152179-217 x -83453-527 x -34363-3689 x -4909
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 18,109,301, 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 | 18,109,301 | |
| -1 | -18,109,301 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 18,109,301.
Example:
1 x 18,109,301 = 18,109,301
and
-1 x -18,109,301 = 18,109,301
Notice both answers equal 18,109,301
With that explanation out of the way, let's continue. Next, we take the number 18,109,301 and divide it by 2:
18,109,301 ÷ 2 = 9,054,650.5
If the quotient is a whole number, then 2 and 9,054,650.5 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 | 18,109,301 | |
| -1 | -18,109,301 |
Now, we try dividing 18,109,301 by 3:
18,109,301 ÷ 3 = 6,036,433.6667
If the quotient is a whole number, then 3 and 6,036,433.6667 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 | 18,109,301 | |
| -1 | -18,109,301 |
Let's try dividing by 4:
18,109,301 ÷ 4 = 4,527,325.25
If the quotient is a whole number, then 4 and 4,527,325.25 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 | 18,109,301 | |
| -1 | 18,109,301 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 31 | 119 | 217 | 527 | 3,689 | 4,909 | 34,363 | 83,453 | 152,179 | 584,171 | 1,065,253 | 2,587,043 | 18,109,301 |
| -1 | -7 | -17 | -31 | -119 | -217 | -527 | -3,689 | -4,909 | -34,363 | -83,453 | -152,179 | -584,171 | -1,065,253 | -2,587,043 | -18,109,301 |
Here are some more numbers to try:
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