A:
Positive:
1 x 16544155111 x 1504014147 x 352003397 x 1705583517 x 3200031067 x 1550533299 x 501494559 x 36289
Negative:
-1 x -165441551-11 x -15040141-47 x -3520033-97 x -1705583-517 x -320003-1067 x -155053-3299 x -50149-4559 x -36289
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 165,441,551, 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 | 165,441,551 | |
| -1 | -165,441,551 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 165,441,551.
Example:
1 x 165,441,551 = 165,441,551
and
-1 x -165,441,551 = 165,441,551
Notice both answers equal 165,441,551
With that explanation out of the way, let's continue. Next, we take the number 165,441,551 and divide it by 2:
165,441,551 ÷ 2 = 82,720,775.5
If the quotient is a whole number, then 2 and 82,720,775.5 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 | 165,441,551 | |
| -1 | -165,441,551 |
Now, we try dividing 165,441,551 by 3:
165,441,551 ÷ 3 = 55,147,183.6667
If the quotient is a whole number, then 3 and 55,147,183.6667 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 | 165,441,551 | |
| -1 | -165,441,551 |
Let's try dividing by 4:
165,441,551 ÷ 4 = 41,360,387.75
If the quotient is a whole number, then 4 and 41,360,387.75 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 | 165,441,551 | |
| -1 | 165,441,551 |
If you did it right, you will end up with this table:
| 1 | 11 | 47 | 97 | 517 | 1,067 | 3,299 | 4,559 | 36,289 | 50,149 | 155,053 | 320,003 | 1,705,583 | 3,520,033 | 15,040,141 | 165,441,551 |
| -1 | -11 | -47 | -97 | -517 | -1,067 | -3,299 | -4,559 | -36,289 | -50,149 | -155,053 | -320,003 | -1,705,583 | -3,520,033 | -15,040,141 | -165,441,551 |
Here are some more numbers to try:
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