A:
Positive:
1 x 24021724719 x 12643013107 x 2245021173 x 1388539683 x 3517092033 x 1181593287 x 7308112977 x 18511
Negative:
-1 x -240217247-19 x -12643013-107 x -2245021-173 x -1388539-683 x -351709-2033 x -118159-3287 x -73081-12977 x -18511
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 240,217,247, 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 | 240,217,247 | |
| -1 | -240,217,247 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 240,217,247.
Example:
1 x 240,217,247 = 240,217,247
and
-1 x -240,217,247 = 240,217,247
Notice both answers equal 240,217,247
With that explanation out of the way, let's continue. Next, we take the number 240,217,247 and divide it by 2:
240,217,247 ÷ 2 = 120,108,623.5
If the quotient is a whole number, then 2 and 120,108,623.5 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 | 240,217,247 | |
| -1 | -240,217,247 |
Now, we try dividing 240,217,247 by 3:
240,217,247 ÷ 3 = 80,072,415.6667
If the quotient is a whole number, then 3 and 80,072,415.6667 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 | 240,217,247 | |
| -1 | -240,217,247 |
Let's try dividing by 4:
240,217,247 ÷ 4 = 60,054,311.75
If the quotient is a whole number, then 4 and 60,054,311.75 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 | 240,217,247 | |
| -1 | 240,217,247 |
If you did it right, you will end up with this table:
| 1 | 19 | 107 | 173 | 683 | 2,033 | 3,287 | 12,977 | 18,511 | 73,081 | 118,159 | 351,709 | 1,388,539 | 2,245,021 | 12,643,013 | 240,217,247 |
| -1 | -19 | -107 | -173 | -683 | -2,033 | -3,287 | -12,977 | -18,511 | -73,081 | -118,159 | -351,709 | -1,388,539 | -2,245,021 | -12,643,013 | -240,217,247 |
Here are some more numbers to try:
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