A:
Positive:
1 x 2435542277 x 3479346141 x 5940347193 x 1261939287 x 8486211351 x 1802774397 x 553917913 x 30779
Negative:
-1 x -243554227-7 x -34793461-41 x -5940347-193 x -1261939-287 x -848621-1351 x -180277-4397 x -55391-7913 x -30779
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 243,554,227, 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 | 243,554,227 | |
| -1 | -243,554,227 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 243,554,227.
Example:
1 x 243,554,227 = 243,554,227
and
-1 x -243,554,227 = 243,554,227
Notice both answers equal 243,554,227
With that explanation out of the way, let's continue. Next, we take the number 243,554,227 and divide it by 2:
243,554,227 ÷ 2 = 121,777,113.5
If the quotient is a whole number, then 2 and 121,777,113.5 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 | 243,554,227 | |
| -1 | -243,554,227 |
Now, we try dividing 243,554,227 by 3:
243,554,227 ÷ 3 = 81,184,742.3333
If the quotient is a whole number, then 3 and 81,184,742.3333 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 | 243,554,227 | |
| -1 | -243,554,227 |
Let's try dividing by 4:
243,554,227 ÷ 4 = 60,888,556.75
If the quotient is a whole number, then 4 and 60,888,556.75 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 | 243,554,227 | |
| -1 | 243,554,227 |
If you did it right, you will end up with this table:
| 1 | 7 | 41 | 193 | 287 | 1,351 | 4,397 | 7,913 | 30,779 | 55,391 | 180,277 | 848,621 | 1,261,939 | 5,940,347 | 34,793,461 | 243,554,227 |
| -1 | -7 | -41 | -193 | -287 | -1,351 | -4,397 | -7,913 | -30,779 | -55,391 | -180,277 | -848,621 | -1,261,939 | -5,940,347 | -34,793,461 | -243,554,227 |
Here are some more numbers to try:
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