A:
Positive:
1 x 666006055 x 1332012119 x 350529541 x 162440595 x 701059205 x 324881779 x 854953895 x 17099
Negative:
-1 x -66600605-5 x -13320121-19 x -3505295-41 x -1624405-95 x -701059-205 x -324881-779 x -85495-3895 x -17099
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 66,600,605, 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 | 66,600,605 | |
| -1 | -66,600,605 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 66,600,605.
Example:
1 x 66,600,605 = 66,600,605
and
-1 x -66,600,605 = 66,600,605
Notice both answers equal 66,600,605
With that explanation out of the way, let's continue. Next, we take the number 66,600,605 and divide it by 2:
66,600,605 ÷ 2 = 33,300,302.5
If the quotient is a whole number, then 2 and 33,300,302.5 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 | 66,600,605 | |
| -1 | -66,600,605 |
Now, we try dividing 66,600,605 by 3:
66,600,605 ÷ 3 = 22,200,201.6667
If the quotient is a whole number, then 3 and 22,200,201.6667 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 | 66,600,605 | |
| -1 | -66,600,605 |
Let's try dividing by 4:
66,600,605 ÷ 4 = 16,650,151.25
If the quotient is a whole number, then 4 and 16,650,151.25 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 | 66,600,605 | |
| -1 | 66,600,605 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 41 | 95 | 205 | 779 | 3,895 | 17,099 | 85,495 | 324,881 | 701,059 | 1,624,405 | 3,505,295 | 13,320,121 | 66,600,605 |
| -1 | -5 | -19 | -41 | -95 | -205 | -779 | -3,895 | -17,099 | -85,495 | -324,881 | -701,059 | -1,624,405 | -3,505,295 | -13,320,121 | -66,600,605 |
Here are some more numbers to try:
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