A:
Positive:
1 x 24001204711 x 2181927719 x 1263221397 x 2474351209 x 11483831067 x 2249411843 x 13022911839 x 20273
Negative:
-1 x -240012047-11 x -21819277-19 x -12632213-97 x -2474351-209 x -1148383-1067 x -224941-1843 x -130229-11839 x -20273
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 240,012,047, 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 | 240,012,047 | |
| -1 | -240,012,047 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 240,012,047.
Example:
1 x 240,012,047 = 240,012,047
and
-1 x -240,012,047 = 240,012,047
Notice both answers equal 240,012,047
With that explanation out of the way, let's continue. Next, we take the number 240,012,047 and divide it by 2:
240,012,047 ÷ 2 = 120,006,023.5
If the quotient is a whole number, then 2 and 120,006,023.5 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 | 240,012,047 | |
| -1 | -240,012,047 |
Now, we try dividing 240,012,047 by 3:
240,012,047 ÷ 3 = 80,004,015.6667
If the quotient is a whole number, then 3 and 80,004,015.6667 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 | 240,012,047 | |
| -1 | -240,012,047 |
Let's try dividing by 4:
240,012,047 ÷ 4 = 60,003,011.75
If the quotient is a whole number, then 4 and 60,003,011.75 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 | 240,012,047 | |
| -1 | 240,012,047 |
If you did it right, you will end up with this table:
| 1 | 11 | 19 | 97 | 209 | 1,067 | 1,843 | 11,839 | 20,273 | 130,229 | 224,941 | 1,148,383 | 2,474,351 | 12,632,213 | 21,819,277 | 240,012,047 |
| -1 | -11 | -19 | -97 | -209 | -1,067 | -1,843 | -11,839 | -20,273 | -130,229 | -224,941 | -1,148,383 | -2,474,351 | -12,632,213 | -21,819,277 | -240,012,047 |
Here are some more numbers to try:
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