A:
Positive:
1 x 3111160719 x 1637453509 x 611233217 x 9671
Negative:
-1 x -31111607-19 x -1637453-509 x -61123-3217 x -9671
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 31,111,607, 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 | 31,111,607 | |
| -1 | -31,111,607 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 31,111,607.
Example:
1 x 31,111,607 = 31,111,607
and
-1 x -31,111,607 = 31,111,607
Notice both answers equal 31,111,607
With that explanation out of the way, let's continue. Next, we take the number 31,111,607 and divide it by 2:
31,111,607 ÷ 2 = 15,555,803.5
If the quotient is a whole number, then 2 and 15,555,803.5 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 | 31,111,607 | |
| -1 | -31,111,607 |
Now, we try dividing 31,111,607 by 3:
31,111,607 ÷ 3 = 10,370,535.6667
If the quotient is a whole number, then 3 and 10,370,535.6667 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 | 31,111,607 | |
| -1 | -31,111,607 |
Let's try dividing by 4:
31,111,607 ÷ 4 = 7,777,901.75
If the quotient is a whole number, then 4 and 7,777,901.75 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 | 31,111,607 | |
| -1 | 31,111,607 |
If you did it right, you will end up with this table:
| 1 | 19 | 509 | 3,217 | 9,671 | 61,123 | 1,637,453 | 31,111,607 |
| -1 | -19 | -509 | -3,217 | -9,671 | -61,123 | -1,637,453 | -31,111,607 |
Here are some more numbers to try:
Try the factor calculator