A:
Positive:
1 x 25511104311 x 2319191319 x 13426897209 x 1220627433 x 5891712819 x 904974763 x 535618227 x 31009
Negative:
-1 x -255111043-11 x -23191913-19 x -13426897-209 x -1220627-433 x -589171-2819 x -90497-4763 x -53561-8227 x -31009
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 255,111,043, 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 | 255,111,043 | |
| -1 | -255,111,043 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 255,111,043.
Example:
1 x 255,111,043 = 255,111,043
and
-1 x -255,111,043 = 255,111,043
Notice both answers equal 255,111,043
With that explanation out of the way, let's continue. Next, we take the number 255,111,043 and divide it by 2:
255,111,043 ÷ 2 = 127,555,521.5
If the quotient is a whole number, then 2 and 127,555,521.5 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 | 255,111,043 | |
| -1 | -255,111,043 |
Now, we try dividing 255,111,043 by 3:
255,111,043 ÷ 3 = 85,037,014.3333
If the quotient is a whole number, then 3 and 85,037,014.3333 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 | 255,111,043 | |
| -1 | -255,111,043 |
Let's try dividing by 4:
255,111,043 ÷ 4 = 63,777,760.75
If the quotient is a whole number, then 4 and 63,777,760.75 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 | 255,111,043 | |
| -1 | 255,111,043 |
If you did it right, you will end up with this table:
| 1 | 11 | 19 | 209 | 433 | 2,819 | 4,763 | 8,227 | 31,009 | 53,561 | 90,497 | 589,171 | 1,220,627 | 13,426,897 | 23,191,913 | 255,111,043 |
| -1 | -11 | -19 | -209 | -433 | -2,819 | -4,763 | -8,227 | -31,009 | -53,561 | -90,497 | -589,171 | -1,220,627 | -13,426,897 | -23,191,913 | -255,111,043 |
Here are some more numbers to try:
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