A:
Positive:
1 x 180599455 x 361198923 x 78521597 x 186185115 x 157043485 x 372371619 x 111552231 x 8095
Negative:
-1 x -18059945-5 x -3611989-23 x -785215-97 x -186185-115 x -157043-485 x -37237-1619 x -11155-2231 x -8095
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 18,059,945, 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 | 18,059,945 | |
| -1 | -18,059,945 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 18,059,945.
Example:
1 x 18,059,945 = 18,059,945
and
-1 x -18,059,945 = 18,059,945
Notice both answers equal 18,059,945
With that explanation out of the way, let's continue. Next, we take the number 18,059,945 and divide it by 2:
18,059,945 ÷ 2 = 9,029,972.5
If the quotient is a whole number, then 2 and 9,029,972.5 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 | 18,059,945 | |
| -1 | -18,059,945 |
Now, we try dividing 18,059,945 by 3:
18,059,945 ÷ 3 = 6,019,981.6667
If the quotient is a whole number, then 3 and 6,019,981.6667 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 | 18,059,945 | |
| -1 | -18,059,945 |
Let's try dividing by 4:
18,059,945 ÷ 4 = 4,514,986.25
If the quotient is a whole number, then 4 and 4,514,986.25 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 | 18,059,945 | |
| -1 | 18,059,945 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 97 | 115 | 485 | 1,619 | 2,231 | 8,095 | 11,155 | 37,237 | 157,043 | 186,185 | 785,215 | 3,611,989 | 18,059,945 |
| -1 | -5 | -23 | -97 | -115 | -485 | -1,619 | -2,231 | -8,095 | -11,155 | -37,237 | -157,043 | -186,185 | -785,215 | -3,611,989 | -18,059,945 |
Here are some more numbers to try:
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