A:
Positive:
1 x 12101233111 x 1100112129 x 4172839103 x 1174877127 x 952853319 x 379349841 x 1438911133 x 1068071397 x 866232987 x 405133683 x 328579251 x 13081
Negative:
-1 x -121012331-11 x -11001121-29 x -4172839-103 x -1174877-127 x -952853-319 x -379349-841 x -143891-1133 x -106807-1397 x -86623-2987 x -40513-3683 x -32857-9251 x -13081
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 121,012,331, 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 | 121,012,331 | |
| -1 | -121,012,331 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 121,012,331.
Example:
1 x 121,012,331 = 121,012,331
and
-1 x -121,012,331 = 121,012,331
Notice both answers equal 121,012,331
With that explanation out of the way, let's continue. Next, we take the number 121,012,331 and divide it by 2:
121,012,331 ÷ 2 = 60,506,165.5
If the quotient is a whole number, then 2 and 60,506,165.5 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 | 121,012,331 | |
| -1 | -121,012,331 |
Now, we try dividing 121,012,331 by 3:
121,012,331 ÷ 3 = 40,337,443.6667
If the quotient is a whole number, then 3 and 40,337,443.6667 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 | 121,012,331 | |
| -1 | -121,012,331 |
Let's try dividing by 4:
121,012,331 ÷ 4 = 30,253,082.75
If the quotient is a whole number, then 4 and 30,253,082.75 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 | 121,012,331 | |
| -1 | 121,012,331 |
If you did it right, you will end up with this table:
| 1 | 11 | 29 | 103 | 127 | 319 | 841 | 1,133 | 1,397 | 2,987 | 3,683 | 9,251 | 13,081 | 32,857 | 40,513 | 86,623 | 106,807 | 143,891 | 379,349 | 952,853 | 1,174,877 | 4,172,839 | 11,001,121 | 121,012,331 |
| -1 | -11 | -29 | -103 | -127 | -319 | -841 | -1,133 | -1,397 | -2,987 | -3,683 | -9,251 | -13,081 | -32,857 | -40,513 | -86,623 | -106,807 | -143,891 | -379,349 | -952,853 | -1,174,877 | -4,172,839 | -11,001,121 | -121,012,331 |
Here are some more numbers to try:
Try the factor calculator