A:
Positive:
1 x 2231421255 x 4462842525 x 8925685125 x 1785137131 x 1703375655 x 3406753275 x 6813513627 x 16375
Negative:
-1 x -223142125-5 x -44628425-25 x -8925685-125 x -1785137-131 x -1703375-655 x -340675-3275 x -68135-13627 x -16375
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 223,142,125, 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 | 223,142,125 | |
| -1 | -223,142,125 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 223,142,125.
Example:
1 x 223,142,125 = 223,142,125
and
-1 x -223,142,125 = 223,142,125
Notice both answers equal 223,142,125
With that explanation out of the way, let's continue. Next, we take the number 223,142,125 and divide it by 2:
223,142,125 ÷ 2 = 111,571,062.5
If the quotient is a whole number, then 2 and 111,571,062.5 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 | 223,142,125 | |
| -1 | -223,142,125 |
Now, we try dividing 223,142,125 by 3:
223,142,125 ÷ 3 = 74,380,708.3333
If the quotient is a whole number, then 3 and 74,380,708.3333 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 | 223,142,125 | |
| -1 | -223,142,125 |
Let's try dividing by 4:
223,142,125 ÷ 4 = 55,785,531.25
If the quotient is a whole number, then 4 and 55,785,531.25 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 | 223,142,125 | |
| -1 | 223,142,125 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 125 | 131 | 655 | 3,275 | 13,627 | 16,375 | 68,135 | 340,675 | 1,703,375 | 1,785,137 | 8,925,685 | 44,628,425 | 223,142,125 |
| -1 | -5 | -25 | -125 | -131 | -655 | -3,275 | -13,627 | -16,375 | -68,135 | -340,675 | -1,703,375 | -1,785,137 | -8,925,685 | -44,628,425 | -223,142,125 |
Here are some more numbers to try:
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