A:
Positive:
1 x 1663014717 x 2375735319 x 875270959 x 2818669133 x 1250387413 x 4026671121 x 1483517847 x 21193
Negative:
-1 x -166301471-7 x -23757353-19 x -8752709-59 x -2818669-133 x -1250387-413 x -402667-1121 x -148351-7847 x -21193
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 166,301,471, 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 | 166,301,471 | |
| -1 | -166,301,471 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 166,301,471.
Example:
1 x 166,301,471 = 166,301,471
and
-1 x -166,301,471 = 166,301,471
Notice both answers equal 166,301,471
With that explanation out of the way, let's continue. Next, we take the number 166,301,471 and divide it by 2:
166,301,471 ÷ 2 = 83,150,735.5
If the quotient is a whole number, then 2 and 83,150,735.5 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 | 166,301,471 | |
| -1 | -166,301,471 |
Now, we try dividing 166,301,471 by 3:
166,301,471 ÷ 3 = 55,433,823.6667
If the quotient is a whole number, then 3 and 55,433,823.6667 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 | 166,301,471 | |
| -1 | -166,301,471 |
Let's try dividing by 4:
166,301,471 ÷ 4 = 41,575,367.75
If the quotient is a whole number, then 4 and 41,575,367.75 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 | 166,301,471 | |
| -1 | 166,301,471 |
If you did it right, you will end up with this table:
| 1 | 7 | 19 | 59 | 133 | 413 | 1,121 | 7,847 | 21,193 | 148,351 | 402,667 | 1,250,387 | 2,818,669 | 8,752,709 | 23,757,353 | 166,301,471 |
| -1 | -7 | -19 | -59 | -133 | -413 | -1,121 | -7,847 | -21,193 | -148,351 | -402,667 | -1,250,387 | -2,818,669 | -8,752,709 | -23,757,353 | -166,301,471 |
Here are some more numbers to try:
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