A:
Positive:
1 x 662434255 x 1324868525 x 2649737113 x 586225131 x 505675179 x 370075565 x 117245655 x 101135895 x 740152825 x 234493275 x 202274475 x 14803
Negative:
-1 x -66243425-5 x -13248685-25 x -2649737-113 x -586225-131 x -505675-179 x -370075-565 x -117245-655 x -101135-895 x -74015-2825 x -23449-3275 x -20227-4475 x -14803
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 66,243,425, 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 | 66,243,425 | |
| -1 | -66,243,425 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 66,243,425.
Example:
1 x 66,243,425 = 66,243,425
and
-1 x -66,243,425 = 66,243,425
Notice both answers equal 66,243,425
With that explanation out of the way, let's continue. Next, we take the number 66,243,425 and divide it by 2:
66,243,425 ÷ 2 = 33,121,712.5
If the quotient is a whole number, then 2 and 33,121,712.5 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 | 66,243,425 | |
| -1 | -66,243,425 |
Now, we try dividing 66,243,425 by 3:
66,243,425 ÷ 3 = 22,081,141.6667
If the quotient is a whole number, then 3 and 22,081,141.6667 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 | 66,243,425 | |
| -1 | -66,243,425 |
Let's try dividing by 4:
66,243,425 ÷ 4 = 16,560,856.25
If the quotient is a whole number, then 4 and 16,560,856.25 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 | 66,243,425 | |
| -1 | 66,243,425 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 113 | 131 | 179 | 565 | 655 | 895 | 2,825 | 3,275 | 4,475 | 14,803 | 20,227 | 23,449 | 74,015 | 101,135 | 117,245 | 370,075 | 505,675 | 586,225 | 2,649,737 | 13,248,685 | 66,243,425 |
| -1 | -5 | -25 | -113 | -131 | -179 | -565 | -655 | -895 | -2,825 | -3,275 | -4,475 | -14,803 | -20,227 | -23,449 | -74,015 | -101,135 | -117,245 | -370,075 | -505,675 | -586,225 | -2,649,737 | -13,248,685 | -66,243,425 |
Here are some more numbers to try:
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