A:
Positive:
1 x 1651716555 x 3303433111 x 1501560519 x 869324555 x 300312195 x 1738649121 x 1365055209 x 790295605 x 2730111045 x 1580592299 x 7184511495 x 14369
Negative:
-1 x -165171655-5 x -33034331-11 x -15015605-19 x -8693245-55 x -3003121-95 x -1738649-121 x -1365055-209 x -790295-605 x -273011-1045 x -158059-2299 x -71845-11495 x -14369
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 165,171,655, 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 | 165,171,655 | |
| -1 | -165,171,655 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 165,171,655.
Example:
1 x 165,171,655 = 165,171,655
and
-1 x -165,171,655 = 165,171,655
Notice both answers equal 165,171,655
With that explanation out of the way, let's continue. Next, we take the number 165,171,655 and divide it by 2:
165,171,655 ÷ 2 = 82,585,827.5
If the quotient is a whole number, then 2 and 82,585,827.5 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 | 165,171,655 | |
| -1 | -165,171,655 |
Now, we try dividing 165,171,655 by 3:
165,171,655 ÷ 3 = 55,057,218.3333
If the quotient is a whole number, then 3 and 55,057,218.3333 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 | 165,171,655 | |
| -1 | -165,171,655 |
Let's try dividing by 4:
165,171,655 ÷ 4 = 41,292,913.75
If the quotient is a whole number, then 4 and 41,292,913.75 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 | 165,171,655 | |
| -1 | 165,171,655 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 19 | 55 | 95 | 121 | 209 | 605 | 1,045 | 2,299 | 11,495 | 14,369 | 71,845 | 158,059 | 273,011 | 790,295 | 1,365,055 | 1,738,649 | 3,003,121 | 8,693,245 | 15,015,605 | 33,034,331 | 165,171,655 |
| -1 | -5 | -11 | -19 | -55 | -95 | -121 | -209 | -605 | -1,045 | -2,299 | -11,495 | -14,369 | -71,845 | -158,059 | -273,011 | -790,295 | -1,365,055 | -1,738,649 | -3,003,121 | -8,693,245 | -15,015,605 | -33,034,331 | -165,171,655 |
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