A:
Positive:
1 x 2553505555 x 5107011143 x 593838553 x 4817935215 x 1187677265 x 9635872279 x 11204511395 x 22409
Negative:
-1 x -255350555-5 x -51070111-43 x -5938385-53 x -4817935-215 x -1187677-265 x -963587-2279 x -112045-11395 x -22409
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 255,350,555, 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 | 255,350,555 | |
| -1 | -255,350,555 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 255,350,555.
Example:
1 x 255,350,555 = 255,350,555
and
-1 x -255,350,555 = 255,350,555
Notice both answers equal 255,350,555
With that explanation out of the way, let's continue. Next, we take the number 255,350,555 and divide it by 2:
255,350,555 ÷ 2 = 127,675,277.5
If the quotient is a whole number, then 2 and 127,675,277.5 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 | 255,350,555 | |
| -1 | -255,350,555 |
Now, we try dividing 255,350,555 by 3:
255,350,555 ÷ 3 = 85,116,851.6667
If the quotient is a whole number, then 3 and 85,116,851.6667 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 | 255,350,555 | |
| -1 | -255,350,555 |
Let's try dividing by 4:
255,350,555 ÷ 4 = 63,837,638.75
If the quotient is a whole number, then 4 and 63,837,638.75 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 | 255,350,555 | |
| -1 | 255,350,555 |
If you did it right, you will end up with this table:
| 1 | 5 | 43 | 53 | 215 | 265 | 2,279 | 11,395 | 22,409 | 112,045 | 963,587 | 1,187,677 | 4,817,935 | 5,938,385 | 51,070,111 | 255,350,555 |
| -1 | -5 | -43 | -53 | -215 | -265 | -2,279 | -11,395 | -22,409 | -112,045 | -963,587 | -1,187,677 | -4,817,935 | -5,938,385 | -51,070,111 | -255,350,555 |
Here are some more numbers to try:
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