A:
Positive:
1 x 3130064311 x 2845513121 x 258683167 x 1874291549 x 202071837 x 17039
Negative:
-1 x -31300643-11 x -2845513-121 x -258683-167 x -187429-1549 x -20207-1837 x -17039
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 31,300,643, 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 | 31,300,643 | |
| -1 | -31,300,643 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 31,300,643.
Example:
1 x 31,300,643 = 31,300,643
and
-1 x -31,300,643 = 31,300,643
Notice both answers equal 31,300,643
With that explanation out of the way, let's continue. Next, we take the number 31,300,643 and divide it by 2:
31,300,643 ÷ 2 = 15,650,321.5
If the quotient is a whole number, then 2 and 15,650,321.5 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 | 31,300,643 | |
| -1 | -31,300,643 |
Now, we try dividing 31,300,643 by 3:
31,300,643 ÷ 3 = 10,433,547.6667
If the quotient is a whole number, then 3 and 10,433,547.6667 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 | 31,300,643 | |
| -1 | -31,300,643 |
Let's try dividing by 4:
31,300,643 ÷ 4 = 7,825,160.75
If the quotient is a whole number, then 4 and 7,825,160.75 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 | 31,300,643 | |
| -1 | 31,300,643 |
If you did it right, you will end up with this table:
| 1 | 11 | 121 | 167 | 1,549 | 1,837 | 17,039 | 20,207 | 187,429 | 258,683 | 2,845,513 | 31,300,643 |
| -1 | -11 | -121 | -167 | -1,549 | -1,837 | -17,039 | -20,207 | -187,429 | -258,683 | -2,845,513 | -31,300,643 |
Here are some more numbers to try:
Try the factor calculator