A:
Positive:
1 x 505131555 x 101026317 x 721616511 x 459210535 x 144323355 x 91842177 x 656015385 x 131203
Negative:
-1 x -50513155-5 x -10102631-7 x -7216165-11 x -4592105-35 x -1443233-55 x -918421-77 x -656015-385 x -131203
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 50,513,155, 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 | 50,513,155 | |
| -1 | -50,513,155 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 50,513,155.
Example:
1 x 50,513,155 = 50,513,155
and
-1 x -50,513,155 = 50,513,155
Notice both answers equal 50,513,155
With that explanation out of the way, let's continue. Next, we take the number 50,513,155 and divide it by 2:
50,513,155 ÷ 2 = 25,256,577.5
If the quotient is a whole number, then 2 and 25,256,577.5 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 | 50,513,155 | |
| -1 | -50,513,155 |
Now, we try dividing 50,513,155 by 3:
50,513,155 ÷ 3 = 16,837,718.3333
If the quotient is a whole number, then 3 and 16,837,718.3333 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 | 50,513,155 | |
| -1 | -50,513,155 |
Let's try dividing by 4:
50,513,155 ÷ 4 = 12,628,288.75
If the quotient is a whole number, then 4 and 12,628,288.75 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 | 50,513,155 | |
| -1 | 50,513,155 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 11 | 35 | 55 | 77 | 385 | 131,203 | 656,015 | 918,421 | 1,443,233 | 4,592,105 | 7,216,165 | 10,102,631 | 50,513,155 |
| -1 | -5 | -7 | -11 | -35 | -55 | -77 | -385 | -131,203 | -656,015 | -918,421 | -1,443,233 | -4,592,105 | -7,216,165 | -10,102,631 | -50,513,155 |
Here are some more numbers to try:
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