A:
Positive:
1 x 1237225555 x 2474451111 x 1124750529 x 426629555 x 2249501145 x 853259319 x 3878451595 x 77569
Negative:
-1 x -123722555-5 x -24744511-11 x -11247505-29 x -4266295-55 x -2249501-145 x -853259-319 x -387845-1595 x -77569
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 123,722,555, 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 | 123,722,555 | |
| -1 | -123,722,555 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 123,722,555.
Example:
1 x 123,722,555 = 123,722,555
and
-1 x -123,722,555 = 123,722,555
Notice both answers equal 123,722,555
With that explanation out of the way, let's continue. Next, we take the number 123,722,555 and divide it by 2:
123,722,555 ÷ 2 = 61,861,277.5
If the quotient is a whole number, then 2 and 61,861,277.5 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 | 123,722,555 | |
| -1 | -123,722,555 |
Now, we try dividing 123,722,555 by 3:
123,722,555 ÷ 3 = 41,240,851.6667
If the quotient is a whole number, then 3 and 41,240,851.6667 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 | 123,722,555 | |
| -1 | -123,722,555 |
Let's try dividing by 4:
123,722,555 ÷ 4 = 30,930,638.75
If the quotient is a whole number, then 4 and 30,930,638.75 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 | 123,722,555 | |
| -1 | 123,722,555 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 29 | 55 | 145 | 319 | 1,595 | 77,569 | 387,845 | 853,259 | 2,249,501 | 4,266,295 | 11,247,505 | 24,744,511 | 123,722,555 |
| -1 | -5 | -11 | -29 | -55 | -145 | -319 | -1,595 | -77,569 | -387,845 | -853,259 | -2,249,501 | -4,266,295 | -11,247,505 | -24,744,511 | -123,722,555 |
Here are some more numbers to try:
Try the factor calculator