A:
Positive:
1 x 1667028555 x 3334057111 x 1515480555 x 3030961941 x 1771553221 x 517554705 x 3543110351 x 16105
Negative:
-1 x -166702855-5 x -33340571-11 x -15154805-55 x -3030961-941 x -177155-3221 x -51755-4705 x -35431-10351 x -16105
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 166,702,855, 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 | 166,702,855 | |
| -1 | -166,702,855 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 166,702,855.
Example:
1 x 166,702,855 = 166,702,855
and
-1 x -166,702,855 = 166,702,855
Notice both answers equal 166,702,855
With that explanation out of the way, let's continue. Next, we take the number 166,702,855 and divide it by 2:
166,702,855 ÷ 2 = 83,351,427.5
If the quotient is a whole number, then 2 and 83,351,427.5 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 | 166,702,855 | |
| -1 | -166,702,855 |
Now, we try dividing 166,702,855 by 3:
166,702,855 ÷ 3 = 55,567,618.3333
If the quotient is a whole number, then 3 and 55,567,618.3333 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 | 166,702,855 | |
| -1 | -166,702,855 |
Let's try dividing by 4:
166,702,855 ÷ 4 = 41,675,713.75
If the quotient is a whole number, then 4 and 41,675,713.75 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 | 166,702,855 | |
| -1 | 166,702,855 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 941 | 3,221 | 4,705 | 10,351 | 16,105 | 35,431 | 51,755 | 177,155 | 3,030,961 | 15,154,805 | 33,340,571 | 166,702,855 |
| -1 | -5 | -11 | -55 | -941 | -3,221 | -4,705 | -10,351 | -16,105 | -35,431 | -51,755 | -177,155 | -3,030,961 | -15,154,805 | -33,340,571 | -166,702,855 |
Here are some more numbers to try:
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