A:
Positive:
1 x 161620555 x 32324117 x 230886513 x 124323535 x 46177365 x 24864791 x 177605455 x 35521
Negative:
-1 x -16162055-5 x -3232411-7 x -2308865-13 x -1243235-35 x -461773-65 x -248647-91 x -177605-455 x -35521
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 16,162,055, 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 | 16,162,055 | |
| -1 | -16,162,055 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 16,162,055.
Example:
1 x 16,162,055 = 16,162,055
and
-1 x -16,162,055 = 16,162,055
Notice both answers equal 16,162,055
With that explanation out of the way, let's continue. Next, we take the number 16,162,055 and divide it by 2:
16,162,055 ÷ 2 = 8,081,027.5
If the quotient is a whole number, then 2 and 8,081,027.5 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 | 16,162,055 | |
| -1 | -16,162,055 |
Now, we try dividing 16,162,055 by 3:
16,162,055 ÷ 3 = 5,387,351.6667
If the quotient is a whole number, then 3 and 5,387,351.6667 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 | 16,162,055 | |
| -1 | -16,162,055 |
Let's try dividing by 4:
16,162,055 ÷ 4 = 4,040,513.75
If the quotient is a whole number, then 4 and 4,040,513.75 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 | 16,162,055 | |
| -1 | 16,162,055 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 13 | 35 | 65 | 91 | 455 | 35,521 | 177,605 | 248,647 | 461,773 | 1,243,235 | 2,308,865 | 3,232,411 | 16,162,055 |
| -1 | -5 | -7 | -13 | -35 | -65 | -91 | -455 | -35,521 | -177,605 | -248,647 | -461,773 | -1,243,235 | -2,308,865 | -3,232,411 | -16,162,055 |
Here are some more numbers to try:
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