A:
Positive:
1 x 12376100929 x 426762143 x 287816361 x 20288691247 x 992471627 x 760671769 x 699612623 x 47183
Negative:
-1 x -123761009-29 x -4267621-43 x -2878163-61 x -2028869-1247 x -99247-1627 x -76067-1769 x -69961-2623 x -47183
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 123,761,009, 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 | 123,761,009 | |
| -1 | -123,761,009 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 123,761,009.
Example:
1 x 123,761,009 = 123,761,009
and
-1 x -123,761,009 = 123,761,009
Notice both answers equal 123,761,009
With that explanation out of the way, let's continue. Next, we take the number 123,761,009 and divide it by 2:
123,761,009 ÷ 2 = 61,880,504.5
If the quotient is a whole number, then 2 and 61,880,504.5 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 | 123,761,009 | |
| -1 | -123,761,009 |
Now, we try dividing 123,761,009 by 3:
123,761,009 ÷ 3 = 41,253,669.6667
If the quotient is a whole number, then 3 and 41,253,669.6667 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 | 123,761,009 | |
| -1 | -123,761,009 |
Let's try dividing by 4:
123,761,009 ÷ 4 = 30,940,252.25
If the quotient is a whole number, then 4 and 30,940,252.25 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 | 123,761,009 | |
| -1 | 123,761,009 |
If you did it right, you will end up with this table:
| 1 | 29 | 43 | 61 | 1,247 | 1,627 | 1,769 | 2,623 | 47,183 | 69,961 | 76,067 | 99,247 | 2,028,869 | 2,878,163 | 4,267,621 | 123,761,009 |
| -1 | -29 | -43 | -61 | -1,247 | -1,627 | -1,769 | -2,623 | -47,183 | -69,961 | -76,067 | -99,247 | -2,028,869 | -2,878,163 | -4,267,621 | -123,761,009 |
Here are some more numbers to try:
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