A:
Positive:
1 x 24070137 x 34385917 x 141589113 x 21301119 x 20227179 x 13447791 x 30431253 x 1921
Negative:
-1 x -2407013-7 x -343859-17 x -141589-113 x -21301-119 x -20227-179 x -13447-791 x -3043-1253 x -1921
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 2,407,013, 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 | 2,407,013 | |
| -1 | -2,407,013 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 2,407,013.
Example:
1 x 2,407,013 = 2,407,013
and
-1 x -2,407,013 = 2,407,013
Notice both answers equal 2,407,013
With that explanation out of the way, let's continue. Next, we take the number 2,407,013 and divide it by 2:
2,407,013 ÷ 2 = 1,203,506.5
If the quotient is a whole number, then 2 and 1,203,506.5 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 | 2,407,013 | |
| -1 | -2,407,013 |
Now, we try dividing 2,407,013 by 3:
2,407,013 ÷ 3 = 802,337.6667
If the quotient is a whole number, then 3 and 802,337.6667 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 | 2,407,013 | |
| -1 | -2,407,013 |
Let's try dividing by 4:
2,407,013 ÷ 4 = 601,753.25
If the quotient is a whole number, then 4 and 601,753.25 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 | 2,407,013 | |
| -1 | 2,407,013 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 113 | 119 | 179 | 791 | 1,253 | 1,921 | 3,043 | 13,447 | 20,227 | 21,301 | 141,589 | 343,859 | 2,407,013 |
| -1 | -7 | -17 | -113 | -119 | -179 | -791 | -1,253 | -1,921 | -3,043 | -13,447 | -20,227 | -21,301 | -141,589 | -343,859 | -2,407,013 |
Here are some more numbers to try:
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