A:
Positive:
1 x 2430404455 x 4860808929 x 8380705145 x 1676141499 x 4870552495 x 974113359 x 7235514471 x 16795
Negative:
-1 x -243040445-5 x -48608089-29 x -8380705-145 x -1676141-499 x -487055-2495 x -97411-3359 x -72355-14471 x -16795
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 243,040,445, 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 | 243,040,445 | |
| -1 | -243,040,445 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 243,040,445.
Example:
1 x 243,040,445 = 243,040,445
and
-1 x -243,040,445 = 243,040,445
Notice both answers equal 243,040,445
With that explanation out of the way, let's continue. Next, we take the number 243,040,445 and divide it by 2:
243,040,445 ÷ 2 = 121,520,222.5
If the quotient is a whole number, then 2 and 121,520,222.5 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 | 243,040,445 | |
| -1 | -243,040,445 |
Now, we try dividing 243,040,445 by 3:
243,040,445 ÷ 3 = 81,013,481.6667
If the quotient is a whole number, then 3 and 81,013,481.6667 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 | 243,040,445 | |
| -1 | -243,040,445 |
Let's try dividing by 4:
243,040,445 ÷ 4 = 60,760,111.25
If the quotient is a whole number, then 4 and 60,760,111.25 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 | 243,040,445 | |
| -1 | 243,040,445 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 145 | 499 | 2,495 | 3,359 | 14,471 | 16,795 | 72,355 | 97,411 | 487,055 | 1,676,141 | 8,380,705 | 48,608,089 | 243,040,445 |
| -1 | -5 | -29 | -145 | -499 | -2,495 | -3,359 | -14,471 | -16,795 | -72,355 | -97,411 | -487,055 | -1,676,141 | -8,380,705 | -48,608,089 | -243,040,445 |
Here are some more numbers to try:
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