A:
Positive:
1 x 1643660155 x 3287320311 x 1494236555 x 298847397 x 1694495485 x 3388991067 x 1540455335 x 30809
Negative:
-1 x -164366015-5 x -32873203-11 x -14942365-55 x -2988473-97 x -1694495-485 x -338899-1067 x -154045-5335 x -30809
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 164,366,015, 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 | 164,366,015 | |
| -1 | -164,366,015 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 164,366,015.
Example:
1 x 164,366,015 = 164,366,015
and
-1 x -164,366,015 = 164,366,015
Notice both answers equal 164,366,015
With that explanation out of the way, let's continue. Next, we take the number 164,366,015 and divide it by 2:
164,366,015 ÷ 2 = 82,183,007.5
If the quotient is a whole number, then 2 and 82,183,007.5 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 | 164,366,015 | |
| -1 | -164,366,015 |
Now, we try dividing 164,366,015 by 3:
164,366,015 ÷ 3 = 54,788,671.6667
If the quotient is a whole number, then 3 and 54,788,671.6667 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 | 164,366,015 | |
| -1 | -164,366,015 |
Let's try dividing by 4:
164,366,015 ÷ 4 = 41,091,503.75
If the quotient is a whole number, then 4 and 41,091,503.75 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 | 164,366,015 | |
| -1 | 164,366,015 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 97 | 485 | 1,067 | 5,335 | 30,809 | 154,045 | 338,899 | 1,694,495 | 2,988,473 | 14,942,365 | 32,873,203 | 164,366,015 |
| -1 | -5 | -11 | -55 | -97 | -485 | -1,067 | -5,335 | -30,809 | -154,045 | -338,899 | -1,694,495 | -2,988,473 | -14,942,365 | -32,873,203 | -164,366,015 |
Here are some more numbers to try:
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