A:
Positive:
1 x 1661046317 x 2372923311 x 1510042119 x 874234977 x 2157203133 x 1248907209 x 7947591463 x 113537
Negative:
-1 x -166104631-7 x -23729233-11 x -15100421-19 x -8742349-77 x -2157203-133 x -1248907-209 x -794759-1463 x -113537
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 166,104,631, 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 | 166,104,631 | |
| -1 | -166,104,631 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 166,104,631.
Example:
1 x 166,104,631 = 166,104,631
and
-1 x -166,104,631 = 166,104,631
Notice both answers equal 166,104,631
With that explanation out of the way, let's continue. Next, we take the number 166,104,631 and divide it by 2:
166,104,631 ÷ 2 = 83,052,315.5
If the quotient is a whole number, then 2 and 83,052,315.5 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 | 166,104,631 | |
| -1 | -166,104,631 |
Now, we try dividing 166,104,631 by 3:
166,104,631 ÷ 3 = 55,368,210.3333
If the quotient is a whole number, then 3 and 55,368,210.3333 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 | 166,104,631 | |
| -1 | -166,104,631 |
Let's try dividing by 4:
166,104,631 ÷ 4 = 41,526,157.75
If the quotient is a whole number, then 4 and 41,526,157.75 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 | 166,104,631 | |
| -1 | 166,104,631 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 19 | 77 | 133 | 209 | 1,463 | 113,537 | 794,759 | 1,248,907 | 2,157,203 | 8,742,349 | 15,100,421 | 23,729,233 | 166,104,631 |
| -1 | -7 | -11 | -19 | -77 | -133 | -209 | -1,463 | -113,537 | -794,759 | -1,248,907 | -2,157,203 | -8,742,349 | -15,100,421 | -23,729,233 | -166,104,631 |
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