A:
Positive:
1 x 3149924917 x 185289729 x 1086181181 x 174029353 x 89233493 x 638933077 x 102375249 x 6001
Negative:
-1 x -31499249-17 x -1852897-29 x -1086181-181 x -174029-353 x -89233-493 x -63893-3077 x -10237-5249 x -6001
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 31,499,249, 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 | 31,499,249 | |
| -1 | -31,499,249 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 31,499,249.
Example:
1 x 31,499,249 = 31,499,249
and
-1 x -31,499,249 = 31,499,249
Notice both answers equal 31,499,249
With that explanation out of the way, let's continue. Next, we take the number 31,499,249 and divide it by 2:
31,499,249 ÷ 2 = 15,749,624.5
If the quotient is a whole number, then 2 and 15,749,624.5 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 | 31,499,249 | |
| -1 | -31,499,249 |
Now, we try dividing 31,499,249 by 3:
31,499,249 ÷ 3 = 10,499,749.6667
If the quotient is a whole number, then 3 and 10,499,749.6667 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 | 31,499,249 | |
| -1 | -31,499,249 |
Let's try dividing by 4:
31,499,249 ÷ 4 = 7,874,812.25
If the quotient is a whole number, then 4 and 7,874,812.25 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 | 31,499,249 | |
| -1 | 31,499,249 |
If you did it right, you will end up with this table:
| 1 | 17 | 29 | 181 | 353 | 493 | 3,077 | 5,249 | 6,001 | 10,237 | 63,893 | 89,233 | 174,029 | 1,086,181 | 1,852,897 | 31,499,249 |
| -1 | -17 | -29 | -181 | -353 | -493 | -3,077 | -5,249 | -6,001 | -10,237 | -63,893 | -89,233 | -174,029 | -1,086,181 | -1,852,897 | -31,499,249 |
Here are some more numbers to try:
Try the factor calculator