A:
Positive:
1 x 1817123655 x 3634247337 x 4911145185 x 982229227 x 8004951135 x 1600994327 x 419958399 x 21635
Negative:
-1 x -181712365-5 x -36342473-37 x -4911145-185 x -982229-227 x -800495-1135 x -160099-4327 x -41995-8399 x -21635
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 181,712,365, 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 | 181,712,365 | |
| -1 | -181,712,365 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 181,712,365.
Example:
1 x 181,712,365 = 181,712,365
and
-1 x -181,712,365 = 181,712,365
Notice both answers equal 181,712,365
With that explanation out of the way, let's continue. Next, we take the number 181,712,365 and divide it by 2:
181,712,365 ÷ 2 = 90,856,182.5
If the quotient is a whole number, then 2 and 90,856,182.5 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 | 181,712,365 | |
| -1 | -181,712,365 |
Now, we try dividing 181,712,365 by 3:
181,712,365 ÷ 3 = 60,570,788.3333
If the quotient is a whole number, then 3 and 60,570,788.3333 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 | 181,712,365 | |
| -1 | -181,712,365 |
Let's try dividing by 4:
181,712,365 ÷ 4 = 45,428,091.25
If the quotient is a whole number, then 4 and 45,428,091.25 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 | 181,712,365 | |
| -1 | 181,712,365 |
If you did it right, you will end up with this table:
| 1 | 5 | 37 | 185 | 227 | 1,135 | 4,327 | 8,399 | 21,635 | 41,995 | 160,099 | 800,495 | 982,229 | 4,911,145 | 36,342,473 | 181,712,365 |
| -1 | -5 | -37 | -185 | -227 | -1,135 | -4,327 | -8,399 | -21,635 | -41,995 | -160,099 | -800,495 | -982,229 | -4,911,145 | -36,342,473 | -181,712,365 |
Here are some more numbers to try:
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