A:
Positive:
1 x 2424025155 x 4848050397 x 2498995113 x 2145155485 x 499799565 x 4290314423 x 5480510961 x 22115
Negative:
-1 x -242402515-5 x -48480503-97 x -2498995-113 x -2145155-485 x -499799-565 x -429031-4423 x -54805-10961 x -22115
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 242,402,515, 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 | 242,402,515 | |
| -1 | -242,402,515 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 242,402,515.
Example:
1 x 242,402,515 = 242,402,515
and
-1 x -242,402,515 = 242,402,515
Notice both answers equal 242,402,515
With that explanation out of the way, let's continue. Next, we take the number 242,402,515 and divide it by 2:
242,402,515 ÷ 2 = 121,201,257.5
If the quotient is a whole number, then 2 and 121,201,257.5 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 | 242,402,515 | |
| -1 | -242,402,515 |
Now, we try dividing 242,402,515 by 3:
242,402,515 ÷ 3 = 80,800,838.3333
If the quotient is a whole number, then 3 and 80,800,838.3333 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 | 242,402,515 | |
| -1 | -242,402,515 |
Let's try dividing by 4:
242,402,515 ÷ 4 = 60,600,628.75
If the quotient is a whole number, then 4 and 60,600,628.75 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 | 242,402,515 | |
| -1 | 242,402,515 |
If you did it right, you will end up with this table:
| 1 | 5 | 97 | 113 | 485 | 565 | 4,423 | 10,961 | 22,115 | 54,805 | 429,031 | 499,799 | 2,145,155 | 2,498,995 | 48,480,503 | 242,402,515 |
| -1 | -5 | -97 | -113 | -485 | -565 | -4,423 | -10,961 | -22,115 | -54,805 | -429,031 | -499,799 | -2,145,155 | -2,498,995 | -48,480,503 | -242,402,515 |
Here are some more numbers to try:
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