A:
Positive:
1 x 3130087783 x 377119149 x 2100732531 x 12367
Negative:
-1 x -31300877-83 x -377119-149 x -210073-2531 x -12367
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 31,300,877, 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 | 31,300,877 | |
| -1 | -31,300,877 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 31,300,877.
Example:
1 x 31,300,877 = 31,300,877
and
-1 x -31,300,877 = 31,300,877
Notice both answers equal 31,300,877
With that explanation out of the way, let's continue. Next, we take the number 31,300,877 and divide it by 2:
31,300,877 ÷ 2 = 15,650,438.5
If the quotient is a whole number, then 2 and 15,650,438.5 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 | 31,300,877 | |
| -1 | -31,300,877 |
Now, we try dividing 31,300,877 by 3:
31,300,877 ÷ 3 = 10,433,625.6667
If the quotient is a whole number, then 3 and 10,433,625.6667 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 | 31,300,877 | |
| -1 | -31,300,877 |
Let's try dividing by 4:
31,300,877 ÷ 4 = 7,825,219.25
If the quotient is a whole number, then 4 and 7,825,219.25 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 | 31,300,877 | |
| -1 | 31,300,877 |
If you did it right, you will end up with this table:
| 1 | 83 | 149 | 2,531 | 12,367 | 210,073 | 377,119 | 31,300,877 |
| -1 | -83 | -149 | -2,531 | -12,367 | -210,073 | -377,119 | -31,300,877 |
Here are some more numbers to try:
Try the factor calculator