A:
Positive:
1 x 161601655 x 32320337 x 230859519 x 85053535 x 46171995 x 170107133 x 121505361 x 44765665 x 243011279 x 126351805 x 89532527 x 6395
Negative:
-1 x -16160165-5 x -3232033-7 x -2308595-19 x -850535-35 x -461719-95 x -170107-133 x -121505-361 x -44765-665 x -24301-1279 x -12635-1805 x -8953-2527 x -6395
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 16,160,165, 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 | 16,160,165 | |
| -1 | -16,160,165 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 16,160,165.
Example:
1 x 16,160,165 = 16,160,165
and
-1 x -16,160,165 = 16,160,165
Notice both answers equal 16,160,165
With that explanation out of the way, let's continue. Next, we take the number 16,160,165 and divide it by 2:
16,160,165 ÷ 2 = 8,080,082.5
If the quotient is a whole number, then 2 and 8,080,082.5 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 | 16,160,165 | |
| -1 | -16,160,165 |
Now, we try dividing 16,160,165 by 3:
16,160,165 ÷ 3 = 5,386,721.6667
If the quotient is a whole number, then 3 and 5,386,721.6667 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 | 16,160,165 | |
| -1 | -16,160,165 |
Let's try dividing by 4:
16,160,165 ÷ 4 = 4,040,041.25
If the quotient is a whole number, then 4 and 4,040,041.25 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 | 16,160,165 | |
| -1 | 16,160,165 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 19 | 35 | 95 | 133 | 361 | 665 | 1,279 | 1,805 | 2,527 | 6,395 | 8,953 | 12,635 | 24,301 | 44,765 | 121,505 | 170,107 | 461,719 | 850,535 | 2,308,595 | 3,232,033 | 16,160,165 |
| -1 | -5 | -7 | -19 | -35 | -95 | -133 | -361 | -665 | -1,279 | -1,805 | -2,527 | -6,395 | -8,953 | -12,635 | -24,301 | -44,765 | -121,505 | -170,107 | -461,719 | -850,535 | -2,308,595 | -3,232,033 | -16,160,165 |
Here are some more numbers to try:
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