A:
Positive:
1 x 5503321555 x 11006643123 x 23927485115 x 4785497239 x 23026451195 x 4605295497 x 10011520023 x 27485
Negative:
-1 x -550332155-5 x -110066431-23 x -23927485-115 x -4785497-239 x -2302645-1195 x -460529-5497 x -100115-20023 x -27485
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 550,332,155, 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 | 550,332,155 | |
| -1 | -550,332,155 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 550,332,155.
Example:
1 x 550,332,155 = 550,332,155
and
-1 x -550,332,155 = 550,332,155
Notice both answers equal 550,332,155
With that explanation out of the way, let's continue. Next, we take the number 550,332,155 and divide it by 2:
550,332,155 ÷ 2 = 275,166,077.5
If the quotient is a whole number, then 2 and 275,166,077.5 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 | 550,332,155 | |
| -1 | -550,332,155 |
Now, we try dividing 550,332,155 by 3:
550,332,155 ÷ 3 = 183,444,051.6667
If the quotient is a whole number, then 3 and 183,444,051.6667 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 | 550,332,155 | |
| -1 | -550,332,155 |
Let's try dividing by 4:
550,332,155 ÷ 4 = 137,583,038.75
If the quotient is a whole number, then 4 and 137,583,038.75 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 | 550,332,155 | |
| -1 | 550,332,155 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 115 | 239 | 1,195 | 5,497 | 20,023 | 27,485 | 100,115 | 460,529 | 2,302,645 | 4,785,497 | 23,927,485 | 110,066,431 | 550,332,155 |
| -1 | -5 | -23 | -115 | -239 | -1,195 | -5,497 | -20,023 | -27,485 | -100,115 | -460,529 | -2,302,645 | -4,785,497 | -23,927,485 | -110,066,431 | -550,332,155 |
Here are some more numbers to try:
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