A:
Positive:
1 x 1220154555 x 2440309137 x 3297715185 x 659543293 x 4164351465 x 832872251 x 5420510841 x 11255
Negative:
-1 x -122015455-5 x -24403091-37 x -3297715-185 x -659543-293 x -416435-1465 x -83287-2251 x -54205-10841 x -11255
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 122,015,455, 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 | 122,015,455 | |
| -1 | -122,015,455 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 122,015,455.
Example:
1 x 122,015,455 = 122,015,455
and
-1 x -122,015,455 = 122,015,455
Notice both answers equal 122,015,455
With that explanation out of the way, let's continue. Next, we take the number 122,015,455 and divide it by 2:
122,015,455 ÷ 2 = 61,007,727.5
If the quotient is a whole number, then 2 and 61,007,727.5 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 | 122,015,455 | |
| -1 | -122,015,455 |
Now, we try dividing 122,015,455 by 3:
122,015,455 ÷ 3 = 40,671,818.3333
If the quotient is a whole number, then 3 and 40,671,818.3333 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 | 122,015,455 | |
| -1 | -122,015,455 |
Let's try dividing by 4:
122,015,455 ÷ 4 = 30,503,863.75
If the quotient is a whole number, then 4 and 30,503,863.75 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 | 122,015,455 | |
| -1 | 122,015,455 |
If you did it right, you will end up with this table:
| 1 | 5 | 37 | 185 | 293 | 1,465 | 2,251 | 10,841 | 11,255 | 54,205 | 83,287 | 416,435 | 659,543 | 3,297,715 | 24,403,091 | 122,015,455 |
| -1 | -5 | -37 | -185 | -293 | -1,465 | -2,251 | -10,841 | -11,255 | -54,205 | -83,287 | -416,435 | -659,543 | -3,297,715 | -24,403,091 | -122,015,455 |
Here are some more numbers to try:
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