A:
Positive:
1 x 1234432555 x 2468865113 x 949563565 x 1899127151 x 817505755 x 1635011963 x 628859815 x 12577
Negative:
-1 x -123443255-5 x -24688651-13 x -9495635-65 x -1899127-151 x -817505-755 x -163501-1963 x -62885-9815 x -12577
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 123,443,255, 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 | 123,443,255 | |
| -1 | -123,443,255 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 123,443,255.
Example:
1 x 123,443,255 = 123,443,255
and
-1 x -123,443,255 = 123,443,255
Notice both answers equal 123,443,255
With that explanation out of the way, let's continue. Next, we take the number 123,443,255 and divide it by 2:
123,443,255 ÷ 2 = 61,721,627.5
If the quotient is a whole number, then 2 and 61,721,627.5 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 | 123,443,255 | |
| -1 | -123,443,255 |
Now, we try dividing 123,443,255 by 3:
123,443,255 ÷ 3 = 41,147,751.6667
If the quotient is a whole number, then 3 and 41,147,751.6667 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 | 123,443,255 | |
| -1 | -123,443,255 |
Let's try dividing by 4:
123,443,255 ÷ 4 = 30,860,813.75
If the quotient is a whole number, then 4 and 30,860,813.75 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 | 123,443,255 | |
| -1 | 123,443,255 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 151 | 755 | 1,963 | 9,815 | 12,577 | 62,885 | 163,501 | 817,505 | 1,899,127 | 9,495,635 | 24,688,651 | 123,443,255 |
| -1 | -5 | -13 | -65 | -151 | -755 | -1,963 | -9,815 | -12,577 | -62,885 | -163,501 | -817,505 | -1,899,127 | -9,495,635 | -24,688,651 | -123,443,255 |
Here are some more numbers to try:
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