A:
Positive:
1 x 6365463655 x 1273092737 x 9093519513 x 4896510535 x 1818703965 x 979302191 x 6995015455 x 1399003
Negative:
-1 x -636546365-5 x -127309273-7 x -90935195-13 x -48965105-35 x -18187039-65 x -9793021-91 x -6995015-455 x -1399003
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 636,546,365, 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 | 636,546,365 | |
| -1 | -636,546,365 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 636,546,365.
Example:
1 x 636,546,365 = 636,546,365
and
-1 x -636,546,365 = 636,546,365
Notice both answers equal 636,546,365
With that explanation out of the way, let's continue. Next, we take the number 636,546,365 and divide it by 2:
636,546,365 ÷ 2 = 318,273,182.5
If the quotient is a whole number, then 2 and 318,273,182.5 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 | 636,546,365 | |
| -1 | -636,546,365 |
Now, we try dividing 636,546,365 by 3:
636,546,365 ÷ 3 = 212,182,121.6667
If the quotient is a whole number, then 3 and 212,182,121.6667 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 | 636,546,365 | |
| -1 | -636,546,365 |
Let's try dividing by 4:
636,546,365 ÷ 4 = 159,136,591.25
If the quotient is a whole number, then 4 and 159,136,591.25 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 | 636,546,365 | |
| -1 | 636,546,365 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 13 | 35 | 65 | 91 | 455 | 1,399,003 | 6,995,015 | 9,793,021 | 18,187,039 | 48,965,105 | 90,935,195 | 127,309,273 | 636,546,365 |
| -1 | -5 | -7 | -13 | -35 | -65 | -91 | -455 | -1,399,003 | -6,995,015 | -9,793,021 | -18,187,039 | -48,965,105 | -90,935,195 | -127,309,273 | -636,546,365 |
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