A:
Positive:
1 x 3111157123 x 1352677127 x 2449732921 x 10651
Negative:
-1 x -31111571-23 x -1352677-127 x -244973-2921 x -10651
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 31,111,571, 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 | 31,111,571 | |
| -1 | -31,111,571 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 31,111,571.
Example:
1 x 31,111,571 = 31,111,571
and
-1 x -31,111,571 = 31,111,571
Notice both answers equal 31,111,571
With that explanation out of the way, let's continue. Next, we take the number 31,111,571 and divide it by 2:
31,111,571 ÷ 2 = 15,555,785.5
If the quotient is a whole number, then 2 and 15,555,785.5 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 | 31,111,571 | |
| -1 | -31,111,571 |
Now, we try dividing 31,111,571 by 3:
31,111,571 ÷ 3 = 10,370,523.6667
If the quotient is a whole number, then 3 and 10,370,523.6667 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 | 31,111,571 | |
| -1 | -31,111,571 |
Let's try dividing by 4:
31,111,571 ÷ 4 = 7,777,892.75
If the quotient is a whole number, then 4 and 7,777,892.75 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 | 31,111,571 | |
| -1 | 31,111,571 |
If you did it right, you will end up with this table:
| 1 | 23 | 127 | 2,921 | 10,651 | 244,973 | 1,352,677 | 31,111,571 |
| -1 | -23 | -127 | -2,921 | -10,651 | -244,973 | -1,352,677 | -31,111,571 |
Here are some more numbers to try:
Try the factor calculator