A:
Positive:
1 x 24991555 x 49983141 x 6095573 x 34235167 x 14965205 x 12191365 x 6847835 x 2993
Negative:
-1 x -2499155-5 x -499831-41 x -60955-73 x -34235-167 x -14965-205 x -12191-365 x -6847-835 x -2993
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 2,499,155, 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 | 2,499,155 | |
| -1 | -2,499,155 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 2,499,155.
Example:
1 x 2,499,155 = 2,499,155
and
-1 x -2,499,155 = 2,499,155
Notice both answers equal 2,499,155
With that explanation out of the way, let's continue. Next, we take the number 2,499,155 and divide it by 2:
2,499,155 ÷ 2 = 1,249,577.5
If the quotient is a whole number, then 2 and 1,249,577.5 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 | 2,499,155 | |
| -1 | -2,499,155 |
Now, we try dividing 2,499,155 by 3:
2,499,155 ÷ 3 = 833,051.6667
If the quotient is a whole number, then 3 and 833,051.6667 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 | 2,499,155 | |
| -1 | -2,499,155 |
Let's try dividing by 4:
2,499,155 ÷ 4 = 624,788.75
If the quotient is a whole number, then 4 and 624,788.75 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 | 2,499,155 | |
| -1 | 2,499,155 |
If you did it right, you will end up with this table:
| 1 | 5 | 41 | 73 | 167 | 205 | 365 | 835 | 2,993 | 6,847 | 12,191 | 14,965 | 34,235 | 60,955 | 499,831 | 2,499,155 |
| -1 | -5 | -41 | -73 | -167 | -205 | -365 | -835 | -2,993 | -6,847 | -12,191 | -14,965 | -34,235 | -60,955 | -499,831 | -2,499,155 |
Here are some more numbers to try:
Try the factor calculator