A:
Positive:
1 x 1211314255 x 2422628525 x 484525741 x 295442559 x 2053075205 x 590885295 x 4106151025 x 1181771475 x 821232003 x 604752419 x 5007510015 x 12095
Negative:
-1 x -121131425-5 x -24226285-25 x -4845257-41 x -2954425-59 x -2053075-205 x -590885-295 x -410615-1025 x -118177-1475 x -82123-2003 x -60475-2419 x -50075-10015 x -12095
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 121,131,425, 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 | 121,131,425 | |
| -1 | -121,131,425 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 121,131,425.
Example:
1 x 121,131,425 = 121,131,425
and
-1 x -121,131,425 = 121,131,425
Notice both answers equal 121,131,425
With that explanation out of the way, let's continue. Next, we take the number 121,131,425 and divide it by 2:
121,131,425 ÷ 2 = 60,565,712.5
If the quotient is a whole number, then 2 and 60,565,712.5 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 | 121,131,425 | |
| -1 | -121,131,425 |
Now, we try dividing 121,131,425 by 3:
121,131,425 ÷ 3 = 40,377,141.6667
If the quotient is a whole number, then 3 and 40,377,141.6667 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 | 121,131,425 | |
| -1 | -121,131,425 |
Let's try dividing by 4:
121,131,425 ÷ 4 = 30,282,856.25
If the quotient is a whole number, then 4 and 30,282,856.25 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 | 121,131,425 | |
| -1 | 121,131,425 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 41 | 59 | 205 | 295 | 1,025 | 1,475 | 2,003 | 2,419 | 10,015 | 12,095 | 50,075 | 60,475 | 82,123 | 118,177 | 410,615 | 590,885 | 2,053,075 | 2,954,425 | 4,845,257 | 24,226,285 | 121,131,425 |
| -1 | -5 | -25 | -41 | -59 | -205 | -295 | -1,025 | -1,475 | -2,003 | -2,419 | -10,015 | -12,095 | -50,075 | -60,475 | -82,123 | -118,177 | -410,615 | -590,885 | -2,053,075 | -2,954,425 | -4,845,257 | -24,226,285 | -121,131,425 |
Here are some more numbers to try:
Try the factor calculator