A:
Positive:
1 x 422287855 x 844575729 x 1456165145 x 291233179 x 235915895 x 471831627 x 259555191 x 8135
Negative:
-1 x -42228785-5 x -8445757-29 x -1456165-145 x -291233-179 x -235915-895 x -47183-1627 x -25955-5191 x -8135
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 42,228,785, 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 | 42,228,785 | |
| -1 | -42,228,785 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 42,228,785.
Example:
1 x 42,228,785 = 42,228,785
and
-1 x -42,228,785 = 42,228,785
Notice both answers equal 42,228,785
With that explanation out of the way, let's continue. Next, we take the number 42,228,785 and divide it by 2:
42,228,785 ÷ 2 = 21,114,392.5
If the quotient is a whole number, then 2 and 21,114,392.5 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 | 42,228,785 | |
| -1 | -42,228,785 |
Now, we try dividing 42,228,785 by 3:
42,228,785 ÷ 3 = 14,076,261.6667
If the quotient is a whole number, then 3 and 14,076,261.6667 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 | 42,228,785 | |
| -1 | -42,228,785 |
Let's try dividing by 4:
42,228,785 ÷ 4 = 10,557,196.25
If the quotient is a whole number, then 4 and 10,557,196.25 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 | 42,228,785 | |
| -1 | 42,228,785 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 145 | 179 | 895 | 1,627 | 5,191 | 8,135 | 25,955 | 47,183 | 235,915 | 291,233 | 1,456,165 | 8,445,757 | 42,228,785 |
| -1 | -5 | -29 | -145 | -179 | -895 | -1,627 | -5,191 | -8,135 | -25,955 | -47,183 | -235,915 | -291,233 | -1,456,165 | -8,445,757 | -42,228,785 |
Here are some more numbers to try:
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