A:
Positive:
1 x 311923155 x 62384637 x 445604511 x 283566535 x 89120955 x 56713377 x 405095385 x 81019
Negative:
-1 x -31192315-5 x -6238463-7 x -4456045-11 x -2835665-35 x -891209-55 x -567133-77 x -405095-385 x -81019
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 31,192,315, 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 | 31,192,315 | |
| -1 | -31,192,315 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 31,192,315.
Example:
1 x 31,192,315 = 31,192,315
and
-1 x -31,192,315 = 31,192,315
Notice both answers equal 31,192,315
With that explanation out of the way, let's continue. Next, we take the number 31,192,315 and divide it by 2:
31,192,315 ÷ 2 = 15,596,157.5
If the quotient is a whole number, then 2 and 15,596,157.5 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 | 31,192,315 | |
| -1 | -31,192,315 |
Now, we try dividing 31,192,315 by 3:
31,192,315 ÷ 3 = 10,397,438.3333
If the quotient is a whole number, then 3 and 10,397,438.3333 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 | 31,192,315 | |
| -1 | -31,192,315 |
Let's try dividing by 4:
31,192,315 ÷ 4 = 7,798,078.75
If the quotient is a whole number, then 4 and 7,798,078.75 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 | 31,192,315 | |
| -1 | 31,192,315 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 11 | 35 | 55 | 77 | 385 | 81,019 | 405,095 | 567,133 | 891,209 | 2,835,665 | 4,456,045 | 6,238,463 | 31,192,315 |
| -1 | -5 | -7 | -11 | -35 | -55 | -77 | -385 | -81,019 | -405,095 | -567,133 | -891,209 | -2,835,665 | -4,456,045 | -6,238,463 | -31,192,315 |
Here are some more numbers to try:
Try the factor calculator