A:
Positive:
1 x 1552312555 x 3104625123 x 6749185115 x 1349837929 x 1670951453 x 1068354645 x 334197265 x 21367
Negative:
-1 x -155231255-5 x -31046251-23 x -6749185-115 x -1349837-929 x -167095-1453 x -106835-4645 x -33419-7265 x -21367
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 155,231,255, 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 | 155,231,255 | |
| -1 | -155,231,255 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 155,231,255.
Example:
1 x 155,231,255 = 155,231,255
and
-1 x -155,231,255 = 155,231,255
Notice both answers equal 155,231,255
With that explanation out of the way, let's continue. Next, we take the number 155,231,255 and divide it by 2:
155,231,255 ÷ 2 = 77,615,627.5
If the quotient is a whole number, then 2 and 77,615,627.5 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 | 155,231,255 | |
| -1 | -155,231,255 |
Now, we try dividing 155,231,255 by 3:
155,231,255 ÷ 3 = 51,743,751.6667
If the quotient is a whole number, then 3 and 51,743,751.6667 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 | 155,231,255 | |
| -1 | -155,231,255 |
Let's try dividing by 4:
155,231,255 ÷ 4 = 38,807,813.75
If the quotient is a whole number, then 4 and 38,807,813.75 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 | 155,231,255 | |
| -1 | 155,231,255 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 115 | 929 | 1,453 | 4,645 | 7,265 | 21,367 | 33,419 | 106,835 | 167,095 | 1,349,837 | 6,749,185 | 31,046,251 | 155,231,255 |
| -1 | -5 | -23 | -115 | -929 | -1,453 | -4,645 | -7,265 | -21,367 | -33,419 | -106,835 | -167,095 | -1,349,837 | -6,749,185 | -31,046,251 | -155,231,255 |
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