A:
Positive:
1 x 2283517855 x 4567035719 x 1201851595 x 2403703227 x 10059551135 x 2011914313 x 5294510589 x 21565
Negative:
-1 x -228351785-5 x -45670357-19 x -12018515-95 x -2403703-227 x -1005955-1135 x -201191-4313 x -52945-10589 x -21565
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 228,351,785, 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 | 228,351,785 | |
| -1 | -228,351,785 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 228,351,785.
Example:
1 x 228,351,785 = 228,351,785
and
-1 x -228,351,785 = 228,351,785
Notice both answers equal 228,351,785
With that explanation out of the way, let's continue. Next, we take the number 228,351,785 and divide it by 2:
228,351,785 ÷ 2 = 114,175,892.5
If the quotient is a whole number, then 2 and 114,175,892.5 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 | 228,351,785 | |
| -1 | -228,351,785 |
Now, we try dividing 228,351,785 by 3:
228,351,785 ÷ 3 = 76,117,261.6667
If the quotient is a whole number, then 3 and 76,117,261.6667 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 | 228,351,785 | |
| -1 | -228,351,785 |
Let's try dividing by 4:
228,351,785 ÷ 4 = 57,087,946.25
If the quotient is a whole number, then 4 and 57,087,946.25 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 | 228,351,785 | |
| -1 | 228,351,785 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 95 | 227 | 1,135 | 4,313 | 10,589 | 21,565 | 52,945 | 201,191 | 1,005,955 | 2,403,703 | 12,018,515 | 45,670,357 | 228,351,785 |
| -1 | -5 | -19 | -95 | -227 | -1,135 | -4,313 | -10,589 | -21,565 | -52,945 | -201,191 | -1,005,955 | -2,403,703 | -12,018,515 | -45,670,357 | -228,351,785 |
Here are some more numbers to try:
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