A:
Positive:
1 x 2424044155 x 4848088311 x 2203676555 x 4407353313 x 7744551565 x 1548913443 x 7040514081 x 17215
Negative:
-1 x -242404415-5 x -48480883-11 x -22036765-55 x -4407353-313 x -774455-1565 x -154891-3443 x -70405-14081 x -17215
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 242,404,415, 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 | 242,404,415 | |
| -1 | -242,404,415 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 242,404,415.
Example:
1 x 242,404,415 = 242,404,415
and
-1 x -242,404,415 = 242,404,415
Notice both answers equal 242,404,415
With that explanation out of the way, let's continue. Next, we take the number 242,404,415 and divide it by 2:
242,404,415 ÷ 2 = 121,202,207.5
If the quotient is a whole number, then 2 and 121,202,207.5 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 | 242,404,415 | |
| -1 | -242,404,415 |
Now, we try dividing 242,404,415 by 3:
242,404,415 ÷ 3 = 80,801,471.6667
If the quotient is a whole number, then 3 and 80,801,471.6667 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 | 242,404,415 | |
| -1 | -242,404,415 |
Let's try dividing by 4:
242,404,415 ÷ 4 = 60,601,103.75
If the quotient is a whole number, then 4 and 60,601,103.75 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 | 242,404,415 | |
| -1 | 242,404,415 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 313 | 1,565 | 3,443 | 14,081 | 17,215 | 70,405 | 154,891 | 774,455 | 4,407,353 | 22,036,765 | 48,480,883 | 242,404,415 |
| -1 | -5 | -11 | -55 | -313 | -1,565 | -3,443 | -14,081 | -17,215 | -70,405 | -154,891 | -774,455 | -4,407,353 | -22,036,765 | -48,480,883 | -242,404,415 |
Here are some more numbers to try:
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