A:
Positive:
1 x 518113455 x 1036226943 x 1204915137 x 378185215 x 240983685 x 756371759 x 294555891 x 8795
Negative:
-1 x -51811345-5 x -10362269-43 x -1204915-137 x -378185-215 x -240983-685 x -75637-1759 x -29455-5891 x -8795
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 51,811,345, 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 | 51,811,345 | |
| -1 | -51,811,345 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 51,811,345.
Example:
1 x 51,811,345 = 51,811,345
and
-1 x -51,811,345 = 51,811,345
Notice both answers equal 51,811,345
With that explanation out of the way, let's continue. Next, we take the number 51,811,345 and divide it by 2:
51,811,345 ÷ 2 = 25,905,672.5
If the quotient is a whole number, then 2 and 25,905,672.5 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 | 51,811,345 | |
| -1 | -51,811,345 |
Now, we try dividing 51,811,345 by 3:
51,811,345 ÷ 3 = 17,270,448.3333
If the quotient is a whole number, then 3 and 17,270,448.3333 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 | 51,811,345 | |
| -1 | -51,811,345 |
Let's try dividing by 4:
51,811,345 ÷ 4 = 12,952,836.25
If the quotient is a whole number, then 4 and 12,952,836.25 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 | 51,811,345 | |
| -1 | 51,811,345 |
If you did it right, you will end up with this table:
| 1 | 5 | 43 | 137 | 215 | 685 | 1,759 | 5,891 | 8,795 | 29,455 | 75,637 | 240,983 | 378,185 | 1,204,915 | 10,362,269 | 51,811,345 |
| -1 | -5 | -43 | -137 | -215 | -685 | -1,759 | -5,891 | -8,795 | -29,455 | -75,637 | -240,983 | -378,185 | -1,204,915 | -10,362,269 | -51,811,345 |
Here are some more numbers to try:
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