A:
Positive:
1 x 3130210119 x 164747989 x 351709107 x 292543173 x 1809371691 x 185112033 x 153973287 x 9523
Negative:
-1 x -31302101-19 x -1647479-89 x -351709-107 x -292543-173 x -180937-1691 x -18511-2033 x -15397-3287 x -9523
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 31,302,101, 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 | 31,302,101 | |
| -1 | -31,302,101 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 31,302,101.
Example:
1 x 31,302,101 = 31,302,101
and
-1 x -31,302,101 = 31,302,101
Notice both answers equal 31,302,101
With that explanation out of the way, let's continue. Next, we take the number 31,302,101 and divide it by 2:
31,302,101 ÷ 2 = 15,651,050.5
If the quotient is a whole number, then 2 and 15,651,050.5 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 | 31,302,101 | |
| -1 | -31,302,101 |
Now, we try dividing 31,302,101 by 3:
31,302,101 ÷ 3 = 10,434,033.6667
If the quotient is a whole number, then 3 and 10,434,033.6667 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 | 31,302,101 | |
| -1 | -31,302,101 |
Let's try dividing by 4:
31,302,101 ÷ 4 = 7,825,525.25
If the quotient is a whole number, then 4 and 7,825,525.25 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 | 31,302,101 | |
| -1 | 31,302,101 |
If you did it right, you will end up with this table:
| 1 | 19 | 89 | 107 | 173 | 1,691 | 2,033 | 3,287 | 9,523 | 15,397 | 18,511 | 180,937 | 292,543 | 351,709 | 1,647,479 | 31,302,101 |
| -1 | -19 | -89 | -107 | -173 | -1,691 | -2,033 | -3,287 | -9,523 | -15,397 | -18,511 | -180,937 | -292,543 | -351,709 | -1,647,479 | -31,302,101 |
Here are some more numbers to try:
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