A:
Positive:
1 x 240799911 x 21890917 x 14164779 x 30481163 x 14773187 x 12877869 x 27711343 x 1793
Negative:
-1 x -2407999-11 x -218909-17 x -141647-79 x -30481-163 x -14773-187 x -12877-869 x -2771-1343 x -1793
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 2,407,999, 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 | 2,407,999 | |
| -1 | -2,407,999 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 2,407,999.
Example:
1 x 2,407,999 = 2,407,999
and
-1 x -2,407,999 = 2,407,999
Notice both answers equal 2,407,999
With that explanation out of the way, let's continue. Next, we take the number 2,407,999 and divide it by 2:
2,407,999 ÷ 2 = 1,203,999.5
If the quotient is a whole number, then 2 and 1,203,999.5 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 | 2,407,999 | |
| -1 | -2,407,999 |
Now, we try dividing 2,407,999 by 3:
2,407,999 ÷ 3 = 802,666.3333
If the quotient is a whole number, then 3 and 802,666.3333 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 | 2,407,999 | |
| -1 | -2,407,999 |
Let's try dividing by 4:
2,407,999 ÷ 4 = 601,999.75
If the quotient is a whole number, then 4 and 601,999.75 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 | 2,407,999 | |
| -1 | 2,407,999 |
If you did it right, you will end up with this table:
| 1 | 11 | 17 | 79 | 163 | 187 | 869 | 1,343 | 1,793 | 2,771 | 12,877 | 14,773 | 30,481 | 141,647 | 218,909 | 2,407,999 |
| -1 | -11 | -17 | -79 | -163 | -187 | -869 | -1,343 | -1,793 | -2,771 | -12,877 | -14,773 | -30,481 | -141,647 | -218,909 | -2,407,999 |
Here are some more numbers to try:
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