A:
Positive:
1 x 1223532555 x 2447065119 x 643964595 x 1287929643 x 1902852003 x 610853215 x 3805710015 x 12217
Negative:
-1 x -122353255-5 x -24470651-19 x -6439645-95 x -1287929-643 x -190285-2003 x -61085-3215 x -38057-10015 x -12217
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 122,353,255, 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 | 122,353,255 | |
| -1 | -122,353,255 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 122,353,255.
Example:
1 x 122,353,255 = 122,353,255
and
-1 x -122,353,255 = 122,353,255
Notice both answers equal 122,353,255
With that explanation out of the way, let's continue. Next, we take the number 122,353,255 and divide it by 2:
122,353,255 ÷ 2 = 61,176,627.5
If the quotient is a whole number, then 2 and 61,176,627.5 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 | 122,353,255 | |
| -1 | -122,353,255 |
Now, we try dividing 122,353,255 by 3:
122,353,255 ÷ 3 = 40,784,418.3333
If the quotient is a whole number, then 3 and 40,784,418.3333 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 | 122,353,255 | |
| -1 | -122,353,255 |
Let's try dividing by 4:
122,353,255 ÷ 4 = 30,588,313.75
If the quotient is a whole number, then 4 and 30,588,313.75 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 | 122,353,255 | |
| -1 | 122,353,255 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 95 | 643 | 2,003 | 3,215 | 10,015 | 12,217 | 38,057 | 61,085 | 190,285 | 1,287,929 | 6,439,645 | 24,470,651 | 122,353,255 |
| -1 | -5 | -19 | -95 | -643 | -2,003 | -3,215 | -10,015 | -12,217 | -38,057 | -61,085 | -190,285 | -1,287,929 | -6,439,645 | -24,470,651 | -122,353,255 |
Here are some more numbers to try:
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