A:
Positive:
1 x 182231955 x 364463931 x 58784589 x 204755155 x 117569445 x 409511321 x 137952759 x 6605
Negative:
-1 x -18223195-5 x -3644639-31 x -587845-89 x -204755-155 x -117569-445 x -40951-1321 x -13795-2759 x -6605
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 18,223,195, 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 | 18,223,195 | |
| -1 | -18,223,195 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 18,223,195.
Example:
1 x 18,223,195 = 18,223,195
and
-1 x -18,223,195 = 18,223,195
Notice both answers equal 18,223,195
With that explanation out of the way, let's continue. Next, we take the number 18,223,195 and divide it by 2:
18,223,195 ÷ 2 = 9,111,597.5
If the quotient is a whole number, then 2 and 9,111,597.5 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 | 18,223,195 | |
| -1 | -18,223,195 |
Now, we try dividing 18,223,195 by 3:
18,223,195 ÷ 3 = 6,074,398.3333
If the quotient is a whole number, then 3 and 6,074,398.3333 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 | 18,223,195 | |
| -1 | -18,223,195 |
Let's try dividing by 4:
18,223,195 ÷ 4 = 4,555,798.75
If the quotient is a whole number, then 4 and 4,555,798.75 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 | 18,223,195 | |
| -1 | 18,223,195 |
If you did it right, you will end up with this table:
| 1 | 5 | 31 | 89 | 155 | 445 | 1,321 | 2,759 | 6,605 | 13,795 | 40,951 | 117,569 | 204,755 | 587,845 | 3,644,639 | 18,223,195 |
| -1 | -5 | -31 | -89 | -155 | -445 | -1,321 | -2,759 | -6,605 | -13,795 | -40,951 | -117,569 | -204,755 | -587,845 | -3,644,639 | -18,223,195 |
Here are some more numbers to try:
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