A:
Positive:
1 x 5054424555 x 1010884917 x 7220606535 x 14441213401 x 12604552005 x 2520912807 x 18006514035 x 36013
Negative:
-1 x -505442455-5 x -101088491-7 x -72206065-35 x -14441213-401 x -1260455-2005 x -252091-2807 x -180065-14035 x -36013
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 505,442,455, 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 | 505,442,455 | |
| -1 | -505,442,455 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 505,442,455.
Example:
1 x 505,442,455 = 505,442,455
and
-1 x -505,442,455 = 505,442,455
Notice both answers equal 505,442,455
With that explanation out of the way, let's continue. Next, we take the number 505,442,455 and divide it by 2:
505,442,455 ÷ 2 = 252,721,227.5
If the quotient is a whole number, then 2 and 252,721,227.5 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 | 505,442,455 | |
| -1 | -505,442,455 |
Now, we try dividing 505,442,455 by 3:
505,442,455 ÷ 3 = 168,480,818.3333
If the quotient is a whole number, then 3 and 168,480,818.3333 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 | 505,442,455 | |
| -1 | -505,442,455 |
Let's try dividing by 4:
505,442,455 ÷ 4 = 126,360,613.75
If the quotient is a whole number, then 4 and 126,360,613.75 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 | 505,442,455 | |
| -1 | 505,442,455 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 401 | 2,005 | 2,807 | 14,035 | 36,013 | 180,065 | 252,091 | 1,260,455 | 14,441,213 | 72,206,065 | 101,088,491 | 505,442,455 |
| -1 | -5 | -7 | -35 | -401 | -2,005 | -2,807 | -14,035 | -36,013 | -180,065 | -252,091 | -1,260,455 | -14,441,213 | -72,206,065 | -101,088,491 | -505,442,455 |
Here are some more numbers to try:
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