A:
Positive:
1 x 16555477343 x 3850111137 x 1208429157 x 1054489179 x 9248875891 x 281036751 x 245237697 x 21509
Negative:
-1 x -165554773-43 x -3850111-137 x -1208429-157 x -1054489-179 x -924887-5891 x -28103-6751 x -24523-7697 x -21509
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 165,554,773, 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 | 165,554,773 | |
| -1 | -165,554,773 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 165,554,773.
Example:
1 x 165,554,773 = 165,554,773
and
-1 x -165,554,773 = 165,554,773
Notice both answers equal 165,554,773
With that explanation out of the way, let's continue. Next, we take the number 165,554,773 and divide it by 2:
165,554,773 ÷ 2 = 82,777,386.5
If the quotient is a whole number, then 2 and 82,777,386.5 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 | 165,554,773 | |
| -1 | -165,554,773 |
Now, we try dividing 165,554,773 by 3:
165,554,773 ÷ 3 = 55,184,924.3333
If the quotient is a whole number, then 3 and 55,184,924.3333 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 | 165,554,773 | |
| -1 | -165,554,773 |
Let's try dividing by 4:
165,554,773 ÷ 4 = 41,388,693.25
If the quotient is a whole number, then 4 and 41,388,693.25 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 | 165,554,773 | |
| -1 | 165,554,773 |
If you did it right, you will end up with this table:
| 1 | 43 | 137 | 157 | 179 | 5,891 | 6,751 | 7,697 | 21,509 | 24,523 | 28,103 | 924,887 | 1,054,489 | 1,208,429 | 3,850,111 | 165,554,773 |
| -1 | -43 | -137 | -157 | -179 | -5,891 | -6,751 | -7,697 | -21,509 | -24,523 | -28,103 | -924,887 | -1,054,489 | -1,208,429 | -3,850,111 | -165,554,773 |
Here are some more numbers to try:
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