A:
Positive:
1 x 1216241155 x 2432482323 x 528800529 x 4193935115 x 1057601145 x 838787667 x 1823453335 x 36469
Negative:
-1 x -121624115-5 x -24324823-23 x -5288005-29 x -4193935-115 x -1057601-145 x -838787-667 x -182345-3335 x -36469
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 121,624,115, 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 | 121,624,115 | |
| -1 | -121,624,115 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 121,624,115.
Example:
1 x 121,624,115 = 121,624,115
and
-1 x -121,624,115 = 121,624,115
Notice both answers equal 121,624,115
With that explanation out of the way, let's continue. Next, we take the number 121,624,115 and divide it by 2:
121,624,115 ÷ 2 = 60,812,057.5
If the quotient is a whole number, then 2 and 60,812,057.5 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 | 121,624,115 | |
| -1 | -121,624,115 |
Now, we try dividing 121,624,115 by 3:
121,624,115 ÷ 3 = 40,541,371.6667
If the quotient is a whole number, then 3 and 40,541,371.6667 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 | 121,624,115 | |
| -1 | -121,624,115 |
Let's try dividing by 4:
121,624,115 ÷ 4 = 30,406,028.75
If the quotient is a whole number, then 4 and 30,406,028.75 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 | 121,624,115 | |
| -1 | 121,624,115 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 29 | 115 | 145 | 667 | 3,335 | 36,469 | 182,345 | 838,787 | 1,057,601 | 4,193,935 | 5,288,005 | 24,324,823 | 121,624,115 |
| -1 | -5 | -23 | -29 | -115 | -145 | -667 | -3,335 | -36,469 | -182,345 | -838,787 | -1,057,601 | -4,193,935 | -5,288,005 | -24,324,823 | -121,624,115 |
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