A:
Positive:
1 x 317275637 x 453250941 x 773843227 x 139769287 x 110549487 x 651491589 x 199673409 x 9307
Negative:
-1 x -31727563-7 x -4532509-41 x -773843-227 x -139769-287 x -110549-487 x -65149-1589 x -19967-3409 x -9307
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 31,727,563, 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 | 31,727,563 | |
| -1 | -31,727,563 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 31,727,563.
Example:
1 x 31,727,563 = 31,727,563
and
-1 x -31,727,563 = 31,727,563
Notice both answers equal 31,727,563
With that explanation out of the way, let's continue. Next, we take the number 31,727,563 and divide it by 2:
31,727,563 ÷ 2 = 15,863,781.5
If the quotient is a whole number, then 2 and 15,863,781.5 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 | 31,727,563 | |
| -1 | -31,727,563 |
Now, we try dividing 31,727,563 by 3:
31,727,563 ÷ 3 = 10,575,854.3333
If the quotient is a whole number, then 3 and 10,575,854.3333 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 | 31,727,563 | |
| -1 | -31,727,563 |
Let's try dividing by 4:
31,727,563 ÷ 4 = 7,931,890.75
If the quotient is a whole number, then 4 and 7,931,890.75 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 | 31,727,563 | |
| -1 | 31,727,563 |
If you did it right, you will end up with this table:
| 1 | 7 | 41 | 227 | 287 | 487 | 1,589 | 3,409 | 9,307 | 19,967 | 65,149 | 110,549 | 139,769 | 773,843 | 4,532,509 | 31,727,563 |
| -1 | -7 | -41 | -227 | -287 | -487 | -1,589 | -3,409 | -9,307 | -19,967 | -65,149 | -110,549 | -139,769 | -773,843 | -4,532,509 | -31,727,563 |
Here are some more numbers to try:
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