A:
Positive:
1 x 1223135055 x 2446270147 x 2602415235 x 520483277 x 4415651385 x 883131879 x 650959395 x 13019
Negative:
-1 x -122313505-5 x -24462701-47 x -2602415-235 x -520483-277 x -441565-1385 x -88313-1879 x -65095-9395 x -13019
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 122,313,505, 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 | 122,313,505 | |
| -1 | -122,313,505 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 122,313,505.
Example:
1 x 122,313,505 = 122,313,505
and
-1 x -122,313,505 = 122,313,505
Notice both answers equal 122,313,505
With that explanation out of the way, let's continue. Next, we take the number 122,313,505 and divide it by 2:
122,313,505 ÷ 2 = 61,156,752.5
If the quotient is a whole number, then 2 and 61,156,752.5 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 | 122,313,505 | |
| -1 | -122,313,505 |
Now, we try dividing 122,313,505 by 3:
122,313,505 ÷ 3 = 40,771,168.3333
If the quotient is a whole number, then 3 and 40,771,168.3333 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 | 122,313,505 | |
| -1 | -122,313,505 |
Let's try dividing by 4:
122,313,505 ÷ 4 = 30,578,376.25
If the quotient is a whole number, then 4 and 30,578,376.25 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 | 122,313,505 | |
| -1 | 122,313,505 |
If you did it right, you will end up with this table:
| 1 | 5 | 47 | 235 | 277 | 1,385 | 1,879 | 9,395 | 13,019 | 65,095 | 88,313 | 441,565 | 520,483 | 2,602,415 | 24,462,701 | 122,313,505 |
| -1 | -5 | -47 | -235 | -277 | -1,385 | -1,879 | -9,395 | -13,019 | -65,095 | -88,313 | -441,565 | -520,483 | -2,602,415 | -24,462,701 | -122,313,505 |
Here are some more numbers to try:
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