A:
Positive:
1 x 1244304055 x 2488608111 x 1131185555 x 2262371257 x 4841651285 x 968332827 x 440158803 x 14135
Negative:
-1 x -124430405-5 x -24886081-11 x -11311855-55 x -2262371-257 x -484165-1285 x -96833-2827 x -44015-8803 x -14135
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 124,430,405, 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 | 124,430,405 | |
| -1 | -124,430,405 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 124,430,405.
Example:
1 x 124,430,405 = 124,430,405
and
-1 x -124,430,405 = 124,430,405
Notice both answers equal 124,430,405
With that explanation out of the way, let's continue. Next, we take the number 124,430,405 and divide it by 2:
124,430,405 ÷ 2 = 62,215,202.5
If the quotient is a whole number, then 2 and 62,215,202.5 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 | 124,430,405 | |
| -1 | -124,430,405 |
Now, we try dividing 124,430,405 by 3:
124,430,405 ÷ 3 = 41,476,801.6667
If the quotient is a whole number, then 3 and 41,476,801.6667 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 | 124,430,405 | |
| -1 | -124,430,405 |
Let's try dividing by 4:
124,430,405 ÷ 4 = 31,107,601.25
If the quotient is a whole number, then 4 and 31,107,601.25 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 | 124,430,405 | |
| -1 | 124,430,405 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 257 | 1,285 | 2,827 | 8,803 | 14,135 | 44,015 | 96,833 | 484,165 | 2,262,371 | 11,311,855 | 24,886,081 | 124,430,405 |
| -1 | -5 | -11 | -55 | -257 | -1,285 | -2,827 | -8,803 | -14,135 | -44,015 | -96,833 | -484,165 | -2,262,371 | -11,311,855 | -24,886,081 | -124,430,405 |
Here are some more numbers to try:
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