A:
Positive:
1 x 12251118113 x 942393737 x 3311113481 x 254701487 x 251563523 x 2342476331 x 193516799 x 18019
Negative:
-1 x -122511181-13 x -9423937-37 x -3311113-481 x -254701-487 x -251563-523 x -234247-6331 x -19351-6799 x -18019
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 122,511,181, 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 | 122,511,181 | |
| -1 | -122,511,181 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 122,511,181.
Example:
1 x 122,511,181 = 122,511,181
and
-1 x -122,511,181 = 122,511,181
Notice both answers equal 122,511,181
With that explanation out of the way, let's continue. Next, we take the number 122,511,181 and divide it by 2:
122,511,181 ÷ 2 = 61,255,590.5
If the quotient is a whole number, then 2 and 61,255,590.5 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 | 122,511,181 | |
| -1 | -122,511,181 |
Now, we try dividing 122,511,181 by 3:
122,511,181 ÷ 3 = 40,837,060.3333
If the quotient is a whole number, then 3 and 40,837,060.3333 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 | 122,511,181 | |
| -1 | -122,511,181 |
Let's try dividing by 4:
122,511,181 ÷ 4 = 30,627,795.25
If the quotient is a whole number, then 4 and 30,627,795.25 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 | 122,511,181 | |
| -1 | 122,511,181 |
If you did it right, you will end up with this table:
| 1 | 13 | 37 | 481 | 487 | 523 | 6,331 | 6,799 | 18,019 | 19,351 | 234,247 | 251,563 | 254,701 | 3,311,113 | 9,423,937 | 122,511,181 |
| -1 | -13 | -37 | -481 | -487 | -523 | -6,331 | -6,799 | -18,019 | -19,351 | -234,247 | -251,563 | -254,701 | -3,311,113 | -9,423,937 | -122,511,181 |
Here are some more numbers to try:
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