A:
Positive:
1 x 299918755 x 599837525 x 119967547 x 638125125 x 239935235 x 127625625 x 479871021 x 293751175 x 255255105 x 5875
Negative:
-1 x -29991875-5 x -5998375-25 x -1199675-47 x -638125-125 x -239935-235 x -127625-625 x -47987-1021 x -29375-1175 x -25525-5105 x -5875
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 29,991,875, 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 | 29,991,875 | |
| -1 | -29,991,875 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 29,991,875.
Example:
1 x 29,991,875 = 29,991,875
and
-1 x -29,991,875 = 29,991,875
Notice both answers equal 29,991,875
With that explanation out of the way, let's continue. Next, we take the number 29,991,875 and divide it by 2:
29,991,875 ÷ 2 = 14,995,937.5
If the quotient is a whole number, then 2 and 14,995,937.5 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 | 29,991,875 | |
| -1 | -29,991,875 |
Now, we try dividing 29,991,875 by 3:
29,991,875 ÷ 3 = 9,997,291.6667
If the quotient is a whole number, then 3 and 9,997,291.6667 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 | 29,991,875 | |
| -1 | -29,991,875 |
Let's try dividing by 4:
29,991,875 ÷ 4 = 7,497,968.75
If the quotient is a whole number, then 4 and 7,497,968.75 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 | 29,991,875 | |
| -1 | 29,991,875 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 47 | 125 | 235 | 625 | 1,021 | 1,175 | 5,105 | 5,875 | 25,525 | 29,375 | 47,987 | 127,625 | 239,935 | 638,125 | 1,199,675 | 5,998,375 | 29,991,875 |
| -1 | -5 | -25 | -47 | -125 | -235 | -625 | -1,021 | -1,175 | -5,105 | -5,875 | -25,525 | -29,375 | -47,987 | -127,625 | -239,935 | -638,125 | -1,199,675 | -5,998,375 | -29,991,875 |
Here are some more numbers to try:
Try the factor calculator