A:
Positive:
1 x 1662669055 x 332533817 x 2375241535 x 47504831427 x 1165153329 x 499457135 x 233039989 x 16645
Negative:
-1 x -166266905-5 x -33253381-7 x -23752415-35 x -4750483-1427 x -116515-3329 x -49945-7135 x -23303-9989 x -16645
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 166,266,905, 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 | 166,266,905 | |
| -1 | -166,266,905 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 166,266,905.
Example:
1 x 166,266,905 = 166,266,905
and
-1 x -166,266,905 = 166,266,905
Notice both answers equal 166,266,905
With that explanation out of the way, let's continue. Next, we take the number 166,266,905 and divide it by 2:
166,266,905 ÷ 2 = 83,133,452.5
If the quotient is a whole number, then 2 and 83,133,452.5 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 | 166,266,905 | |
| -1 | -166,266,905 |
Now, we try dividing 166,266,905 by 3:
166,266,905 ÷ 3 = 55,422,301.6667
If the quotient is a whole number, then 3 and 55,422,301.6667 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 | 166,266,905 | |
| -1 | -166,266,905 |
Let's try dividing by 4:
166,266,905 ÷ 4 = 41,566,726.25
If the quotient is a whole number, then 4 and 41,566,726.25 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 | 166,266,905 | |
| -1 | 166,266,905 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 1,427 | 3,329 | 7,135 | 9,989 | 16,645 | 23,303 | 49,945 | 116,515 | 4,750,483 | 23,752,415 | 33,253,381 | 166,266,905 |
| -1 | -5 | -7 | -35 | -1,427 | -3,329 | -7,135 | -9,989 | -16,645 | -23,303 | -49,945 | -116,515 | -4,750,483 | -23,752,415 | -33,253,381 | -166,266,905 |
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