A:
Positive:
1 x 180771855 x 36154377 x 258245531 x 58313535 x 516491155 x 116627217 x 833051085 x 16661
Negative:
-1 x -18077185-5 x -3615437-7 x -2582455-31 x -583135-35 x -516491-155 x -116627-217 x -83305-1085 x -16661
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 18,077,185, 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 | 18,077,185 | |
| -1 | -18,077,185 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 18,077,185.
Example:
1 x 18,077,185 = 18,077,185
and
-1 x -18,077,185 = 18,077,185
Notice both answers equal 18,077,185
With that explanation out of the way, let's continue. Next, we take the number 18,077,185 and divide it by 2:
18,077,185 ÷ 2 = 9,038,592.5
If the quotient is a whole number, then 2 and 9,038,592.5 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 | 18,077,185 | |
| -1 | -18,077,185 |
Now, we try dividing 18,077,185 by 3:
18,077,185 ÷ 3 = 6,025,728.3333
If the quotient is a whole number, then 3 and 6,025,728.3333 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 | 18,077,185 | |
| -1 | -18,077,185 |
Let's try dividing by 4:
18,077,185 ÷ 4 = 4,519,296.25
If the quotient is a whole number, then 4 and 4,519,296.25 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 | 18,077,185 | |
| -1 | 18,077,185 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 31 | 35 | 155 | 217 | 1,085 | 16,661 | 83,305 | 116,627 | 516,491 | 583,135 | 2,582,455 | 3,615,437 | 18,077,185 |
| -1 | -5 | -7 | -31 | -35 | -155 | -217 | -1,085 | -16,661 | -83,305 | -116,627 | -516,491 | -583,135 | -2,582,455 | -3,615,437 | -18,077,185 |
Here are some more numbers to try:
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