A:
Positive:
1 x 12100075911 x 1100006919 x 636846161 x 1983619209 x 578951671 x 1803291159 x 1044019491 x 12749
Negative:
-1 x -121000759-11 x -11000069-19 x -6368461-61 x -1983619-209 x -578951-671 x -180329-1159 x -104401-9491 x -12749
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 121,000,759, 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 | 121,000,759 | |
| -1 | -121,000,759 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 121,000,759.
Example:
1 x 121,000,759 = 121,000,759
and
-1 x -121,000,759 = 121,000,759
Notice both answers equal 121,000,759
With that explanation out of the way, let's continue. Next, we take the number 121,000,759 and divide it by 2:
121,000,759 ÷ 2 = 60,500,379.5
If the quotient is a whole number, then 2 and 60,500,379.5 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 | 121,000,759 | |
| -1 | -121,000,759 |
Now, we try dividing 121,000,759 by 3:
121,000,759 ÷ 3 = 40,333,586.3333
If the quotient is a whole number, then 3 and 40,333,586.3333 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 | 121,000,759 | |
| -1 | -121,000,759 |
Let's try dividing by 4:
121,000,759 ÷ 4 = 30,250,189.75
If the quotient is a whole number, then 4 and 30,250,189.75 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 | 121,000,759 | |
| -1 | 121,000,759 |
If you did it right, you will end up with this table:
| 1 | 11 | 19 | 61 | 209 | 671 | 1,159 | 9,491 | 12,749 | 104,401 | 180,329 | 578,951 | 1,983,619 | 6,368,461 | 11,000,069 | 121,000,759 |
| -1 | -11 | -19 | -61 | -209 | -671 | -1,159 | -9,491 | -12,749 | -104,401 | -180,329 | -578,951 | -1,983,619 | -6,368,461 | -11,000,069 | -121,000,759 |
Here are some more numbers to try:
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