A:
Positive:
1 x 1225857555 x 2451715129 x 4227095145 x 845419661 x 1854551279 x 958453305 x 370916395 x 19169
Negative:
-1 x -122585755-5 x -24517151-29 x -4227095-145 x -845419-661 x -185455-1279 x -95845-3305 x -37091-6395 x -19169
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 122,585,755, 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 | 122,585,755 | |
| -1 | -122,585,755 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 122,585,755.
Example:
1 x 122,585,755 = 122,585,755
and
-1 x -122,585,755 = 122,585,755
Notice both answers equal 122,585,755
With that explanation out of the way, let's continue. Next, we take the number 122,585,755 and divide it by 2:
122,585,755 ÷ 2 = 61,292,877.5
If the quotient is a whole number, then 2 and 61,292,877.5 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 | 122,585,755 | |
| -1 | -122,585,755 |
Now, we try dividing 122,585,755 by 3:
122,585,755 ÷ 3 = 40,861,918.3333
If the quotient is a whole number, then 3 and 40,861,918.3333 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 | 122,585,755 | |
| -1 | -122,585,755 |
Let's try dividing by 4:
122,585,755 ÷ 4 = 30,646,438.75
If the quotient is a whole number, then 4 and 30,646,438.75 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 | 122,585,755 | |
| -1 | 122,585,755 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 145 | 661 | 1,279 | 3,305 | 6,395 | 19,169 | 37,091 | 95,845 | 185,455 | 845,419 | 4,227,095 | 24,517,151 | 122,585,755 |
| -1 | -5 | -29 | -145 | -661 | -1,279 | -3,305 | -6,395 | -19,169 | -37,091 | -95,845 | -185,455 | -845,419 | -4,227,095 | -24,517,151 | -122,585,755 |
Here are some more numbers to try:
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