A:
Positive:
1 x 5015151355 x 10030302711 x 4559228555 x 91184572521 x 1989353617 x 13865512605 x 3978718085 x 27731
Negative:
-1 x -501515135-5 x -100303027-11 x -45592285-55 x -9118457-2521 x -198935-3617 x -138655-12605 x -39787-18085 x -27731
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 501,515,135, 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 | 501,515,135 | |
| -1 | -501,515,135 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 501,515,135.
Example:
1 x 501,515,135 = 501,515,135
and
-1 x -501,515,135 = 501,515,135
Notice both answers equal 501,515,135
With that explanation out of the way, let's continue. Next, we take the number 501,515,135 and divide it by 2:
501,515,135 ÷ 2 = 250,757,567.5
If the quotient is a whole number, then 2 and 250,757,567.5 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 | 501,515,135 | |
| -1 | -501,515,135 |
Now, we try dividing 501,515,135 by 3:
501,515,135 ÷ 3 = 167,171,711.6667
If the quotient is a whole number, then 3 and 167,171,711.6667 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 | 501,515,135 | |
| -1 | -501,515,135 |
Let's try dividing by 4:
501,515,135 ÷ 4 = 125,378,783.75
If the quotient is a whole number, then 4 and 125,378,783.75 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 | 501,515,135 | |
| -1 | 501,515,135 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 2,521 | 3,617 | 12,605 | 18,085 | 27,731 | 39,787 | 138,655 | 198,935 | 9,118,457 | 45,592,285 | 100,303,027 | 501,515,135 |
| -1 | -5 | -11 | -55 | -2,521 | -3,617 | -12,605 | -18,085 | -27,731 | -39,787 | -138,655 | -198,935 | -9,118,457 | -45,592,285 | -100,303,027 | -501,515,135 |
Here are some more numbers to try:
Try the factor calculator