A:
Positive:
1 x 1662306317 x 2374723353 x 3136427167 x 995393371 x 4480611169 x 1421992683 x 619578851 x 18781
Negative:
-1 x -166230631-7 x -23747233-53 x -3136427-167 x -995393-371 x -448061-1169 x -142199-2683 x -61957-8851 x -18781
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 166,230,631, 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 | 166,230,631 | |
| -1 | -166,230,631 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 166,230,631.
Example:
1 x 166,230,631 = 166,230,631
and
-1 x -166,230,631 = 166,230,631
Notice both answers equal 166,230,631
With that explanation out of the way, let's continue. Next, we take the number 166,230,631 and divide it by 2:
166,230,631 ÷ 2 = 83,115,315.5
If the quotient is a whole number, then 2 and 83,115,315.5 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 | 166,230,631 | |
| -1 | -166,230,631 |
Now, we try dividing 166,230,631 by 3:
166,230,631 ÷ 3 = 55,410,210.3333
If the quotient is a whole number, then 3 and 55,410,210.3333 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 | 166,230,631 | |
| -1 | -166,230,631 |
Let's try dividing by 4:
166,230,631 ÷ 4 = 41,557,657.75
If the quotient is a whole number, then 4 and 41,557,657.75 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 | 166,230,631 | |
| -1 | 166,230,631 |
If you did it right, you will end up with this table:
| 1 | 7 | 53 | 167 | 371 | 1,169 | 2,683 | 8,851 | 18,781 | 61,957 | 142,199 | 448,061 | 995,393 | 3,136,427 | 23,747,233 | 166,230,631 |
| -1 | -7 | -53 | -167 | -371 | -1,169 | -2,683 | -8,851 | -18,781 | -61,957 | -142,199 | -448,061 | -995,393 | -3,136,427 | -23,747,233 | -166,230,631 |
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