A:
Positive:
1 x 12388982319 x 652051741 x 3021703359 x 345097443 x 279661779 x 1590376821 x 181638417 x 14719
Negative:
-1 x -123889823-19 x -6520517-41 x -3021703-359 x -345097-443 x -279661-779 x -159037-6821 x -18163-8417 x -14719
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 123,889,823, 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 | 123,889,823 | |
| -1 | -123,889,823 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 123,889,823.
Example:
1 x 123,889,823 = 123,889,823
and
-1 x -123,889,823 = 123,889,823
Notice both answers equal 123,889,823
With that explanation out of the way, let's continue. Next, we take the number 123,889,823 and divide it by 2:
123,889,823 ÷ 2 = 61,944,911.5
If the quotient is a whole number, then 2 and 61,944,911.5 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 | 123,889,823 | |
| -1 | -123,889,823 |
Now, we try dividing 123,889,823 by 3:
123,889,823 ÷ 3 = 41,296,607.6667
If the quotient is a whole number, then 3 and 41,296,607.6667 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 | 123,889,823 | |
| -1 | -123,889,823 |
Let's try dividing by 4:
123,889,823 ÷ 4 = 30,972,455.75
If the quotient is a whole number, then 4 and 30,972,455.75 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 | 123,889,823 | |
| -1 | 123,889,823 |
If you did it right, you will end up with this table:
| 1 | 19 | 41 | 359 | 443 | 779 | 6,821 | 8,417 | 14,719 | 18,163 | 159,037 | 279,661 | 345,097 | 3,021,703 | 6,520,517 | 123,889,823 |
| -1 | -19 | -41 | -359 | -443 | -779 | -6,821 | -8,417 | -14,719 | -18,163 | -159,037 | -279,661 | -345,097 | -3,021,703 | -6,520,517 | -123,889,823 |
Here are some more numbers to try:
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