A:
Positive:
1 x 1211044037 x 1730062959 x 205261797 x 1248499413 x 293231679 x 1783573023 x 400615723 x 21161
Negative:
-1 x -121104403-7 x -17300629-59 x -2052617-97 x -1248499-413 x -293231-679 x -178357-3023 x -40061-5723 x -21161
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 121,104,403, 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 | 121,104,403 | |
| -1 | -121,104,403 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 121,104,403.
Example:
1 x 121,104,403 = 121,104,403
and
-1 x -121,104,403 = 121,104,403
Notice both answers equal 121,104,403
With that explanation out of the way, let's continue. Next, we take the number 121,104,403 and divide it by 2:
121,104,403 ÷ 2 = 60,552,201.5
If the quotient is a whole number, then 2 and 60,552,201.5 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 | 121,104,403 | |
| -1 | -121,104,403 |
Now, we try dividing 121,104,403 by 3:
121,104,403 ÷ 3 = 40,368,134.3333
If the quotient is a whole number, then 3 and 40,368,134.3333 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 | 121,104,403 | |
| -1 | -121,104,403 |
Let's try dividing by 4:
121,104,403 ÷ 4 = 30,276,100.75
If the quotient is a whole number, then 4 and 30,276,100.75 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 | 121,104,403 | |
| -1 | 121,104,403 |
If you did it right, you will end up with this table:
| 1 | 7 | 59 | 97 | 413 | 679 | 3,023 | 5,723 | 21,161 | 40,061 | 178,357 | 293,231 | 1,248,499 | 2,052,617 | 17,300,629 | 121,104,403 |
| -1 | -7 | -59 | -97 | -413 | -679 | -3,023 | -5,723 | -21,161 | -40,061 | -178,357 | -293,231 | -1,248,499 | -2,052,617 | -17,300,629 | -121,104,403 |
Here are some more numbers to try:
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