A:
Positive:
1 x 6663170937 x 180085759 x 1129351131 x 508639233 x 2859732183 x 305234847 x 137477729 x 8621
Negative:
-1 x -66631709-37 x -1800857-59 x -1129351-131 x -508639-233 x -285973-2183 x -30523-4847 x -13747-7729 x -8621
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 66,631,709, 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 | 66,631,709 | |
| -1 | -66,631,709 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 66,631,709.
Example:
1 x 66,631,709 = 66,631,709
and
-1 x -66,631,709 = 66,631,709
Notice both answers equal 66,631,709
With that explanation out of the way, let's continue. Next, we take the number 66,631,709 and divide it by 2:
66,631,709 ÷ 2 = 33,315,854.5
If the quotient is a whole number, then 2 and 33,315,854.5 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 | 66,631,709 | |
| -1 | -66,631,709 |
Now, we try dividing 66,631,709 by 3:
66,631,709 ÷ 3 = 22,210,569.6667
If the quotient is a whole number, then 3 and 22,210,569.6667 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 | 66,631,709 | |
| -1 | -66,631,709 |
Let's try dividing by 4:
66,631,709 ÷ 4 = 16,657,927.25
If the quotient is a whole number, then 4 and 16,657,927.25 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 | 66,631,709 | |
| -1 | 66,631,709 |
If you did it right, you will end up with this table:
| 1 | 37 | 59 | 131 | 233 | 2,183 | 4,847 | 7,729 | 8,621 | 13,747 | 30,523 | 285,973 | 508,639 | 1,129,351 | 1,800,857 | 66,631,709 |
| -1 | -37 | -59 | -131 | -233 | -2,183 | -4,847 | -7,729 | -8,621 | -13,747 | -30,523 | -285,973 | -508,639 | -1,129,351 | -1,800,857 | -66,631,709 |
Here are some more numbers to try:
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