A:
Positive:
1 x 66422656717 x 3907215119 x 34959293323 x 2056429631 x 10526573259 x 20381310727 x 6192111989 x 55403
Negative:
-1 x -664226567-17 x -39072151-19 x -34959293-323 x -2056429-631 x -1052657-3259 x -203813-10727 x -61921-11989 x -55403
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 664,226,567, 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 | 664,226,567 | |
| -1 | -664,226,567 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 664,226,567.
Example:
1 x 664,226,567 = 664,226,567
and
-1 x -664,226,567 = 664,226,567
Notice both answers equal 664,226,567
With that explanation out of the way, let's continue. Next, we take the number 664,226,567 and divide it by 2:
664,226,567 ÷ 2 = 332,113,283.5
If the quotient is a whole number, then 2 and 332,113,283.5 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 | 664,226,567 | |
| -1 | -664,226,567 |
Now, we try dividing 664,226,567 by 3:
664,226,567 ÷ 3 = 221,408,855.6667
If the quotient is a whole number, then 3 and 221,408,855.6667 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 | 664,226,567 | |
| -1 | -664,226,567 |
Let's try dividing by 4:
664,226,567 ÷ 4 = 166,056,641.75
If the quotient is a whole number, then 4 and 166,056,641.75 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 | 664,226,567 | |
| -1 | 664,226,567 |
If you did it right, you will end up with this table:
| 1 | 17 | 19 | 323 | 631 | 3,259 | 10,727 | 11,989 | 55,403 | 61,921 | 203,813 | 1,052,657 | 2,056,429 | 34,959,293 | 39,072,151 | 664,226,567 |
| -1 | -17 | -19 | -323 | -631 | -3,259 | -10,727 | -11,989 | -55,403 | -61,921 | -203,813 | -1,052,657 | -2,056,429 | -34,959,293 | -39,072,151 | -664,226,567 |
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