A:
Positive:
1 x 1233010155 x 2466020373 x 1689055211 x 584365365 x 3378111055 x 1168731601 x 770158005 x 15403
Negative:
-1 x -123301015-5 x -24660203-73 x -1689055-211 x -584365-365 x -337811-1055 x -116873-1601 x -77015-8005 x -15403
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 123,301,015, 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 | 123,301,015 | |
| -1 | -123,301,015 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 123,301,015.
Example:
1 x 123,301,015 = 123,301,015
and
-1 x -123,301,015 = 123,301,015
Notice both answers equal 123,301,015
With that explanation out of the way, let's continue. Next, we take the number 123,301,015 and divide it by 2:
123,301,015 ÷ 2 = 61,650,507.5
If the quotient is a whole number, then 2 and 61,650,507.5 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 | 123,301,015 | |
| -1 | -123,301,015 |
Now, we try dividing 123,301,015 by 3:
123,301,015 ÷ 3 = 41,100,338.3333
If the quotient is a whole number, then 3 and 41,100,338.3333 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 | 123,301,015 | |
| -1 | -123,301,015 |
Let's try dividing by 4:
123,301,015 ÷ 4 = 30,825,253.75
If the quotient is a whole number, then 4 and 30,825,253.75 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 | 123,301,015 | |
| -1 | 123,301,015 |
If you did it right, you will end up with this table:
| 1 | 5 | 73 | 211 | 365 | 1,055 | 1,601 | 8,005 | 15,403 | 77,015 | 116,873 | 337,811 | 584,365 | 1,689,055 | 24,660,203 | 123,301,015 |
| -1 | -5 | -73 | -211 | -365 | -1,055 | -1,601 | -8,005 | -15,403 | -77,015 | -116,873 | -337,811 | -584,365 | -1,689,055 | -24,660,203 | -123,301,015 |
Here are some more numbers to try:
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