A:
Positive:
1 x 1211443455 x 242288697 x 1730633535 x 3461267331 x 3659951655 x 731992317 x 5228510457 x 11585
Negative:
-1 x -121144345-5 x -24228869-7 x -17306335-35 x -3461267-331 x -365995-1655 x -73199-2317 x -52285-10457 x -11585
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 121,144,345, 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 | 121,144,345 | |
| -1 | -121,144,345 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 121,144,345.
Example:
1 x 121,144,345 = 121,144,345
and
-1 x -121,144,345 = 121,144,345
Notice both answers equal 121,144,345
With that explanation out of the way, let's continue. Next, we take the number 121,144,345 and divide it by 2:
121,144,345 ÷ 2 = 60,572,172.5
If the quotient is a whole number, then 2 and 60,572,172.5 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 | 121,144,345 | |
| -1 | -121,144,345 |
Now, we try dividing 121,144,345 by 3:
121,144,345 ÷ 3 = 40,381,448.3333
If the quotient is a whole number, then 3 and 40,381,448.3333 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 | 121,144,345 | |
| -1 | -121,144,345 |
Let's try dividing by 4:
121,144,345 ÷ 4 = 30,286,086.25
If the quotient is a whole number, then 4 and 30,286,086.25 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 | 121,144,345 | |
| -1 | 121,144,345 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 331 | 1,655 | 2,317 | 10,457 | 11,585 | 52,285 | 73,199 | 365,995 | 3,461,267 | 17,306,335 | 24,228,869 | 121,144,345 |
| -1 | -5 | -7 | -35 | -331 | -1,655 | -2,317 | -10,457 | -11,585 | -52,285 | -73,199 | -365,995 | -3,461,267 | -17,306,335 | -24,228,869 | -121,144,345 |
Here are some more numbers to try:
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