A:
Positive:
1 x 1626471555 x 3252943111 x 1478610555 x 295722171 x 2290805355 x 458161781 x 2082553905 x 41651
Negative:
-1 x -162647155-5 x -32529431-11 x -14786105-55 x -2957221-71 x -2290805-355 x -458161-781 x -208255-3905 x -41651
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 162,647,155, 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 | 162,647,155 | |
| -1 | -162,647,155 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 162,647,155.
Example:
1 x 162,647,155 = 162,647,155
and
-1 x -162,647,155 = 162,647,155
Notice both answers equal 162,647,155
With that explanation out of the way, let's continue. Next, we take the number 162,647,155 and divide it by 2:
162,647,155 ÷ 2 = 81,323,577.5
If the quotient is a whole number, then 2 and 81,323,577.5 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 | 162,647,155 | |
| -1 | -162,647,155 |
Now, we try dividing 162,647,155 by 3:
162,647,155 ÷ 3 = 54,215,718.3333
If the quotient is a whole number, then 3 and 54,215,718.3333 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 | 162,647,155 | |
| -1 | -162,647,155 |
Let's try dividing by 4:
162,647,155 ÷ 4 = 40,661,788.75
If the quotient is a whole number, then 4 and 40,661,788.75 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 | 162,647,155 | |
| -1 | 162,647,155 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 71 | 355 | 781 | 3,905 | 41,651 | 208,255 | 458,161 | 2,290,805 | 2,957,221 | 14,786,105 | 32,529,431 | 162,647,155 |
| -1 | -5 | -11 | -55 | -71 | -355 | -781 | -3,905 | -41,651 | -208,255 | -458,161 | -2,290,805 | -2,957,221 | -14,786,105 | -32,529,431 | -162,647,155 |
Here are some more numbers to try:
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