A:
Positive:
1 x 551275155 x 1102550317 x 324279585 x 648559269 x 2049351345 x 409872411 x 228654573 x 12055
Negative:
-1 x -55127515-5 x -11025503-17 x -3242795-85 x -648559-269 x -204935-1345 x -40987-2411 x -22865-4573 x -12055
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 55,127,515, 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 | 55,127,515 | |
| -1 | -55,127,515 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 55,127,515.
Example:
1 x 55,127,515 = 55,127,515
and
-1 x -55,127,515 = 55,127,515
Notice both answers equal 55,127,515
With that explanation out of the way, let's continue. Next, we take the number 55,127,515 and divide it by 2:
55,127,515 ÷ 2 = 27,563,757.5
If the quotient is a whole number, then 2 and 27,563,757.5 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 | 55,127,515 | |
| -1 | -55,127,515 |
Now, we try dividing 55,127,515 by 3:
55,127,515 ÷ 3 = 18,375,838.3333
If the quotient is a whole number, then 3 and 18,375,838.3333 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 | 55,127,515 | |
| -1 | -55,127,515 |
Let's try dividing by 4:
55,127,515 ÷ 4 = 13,781,878.75
If the quotient is a whole number, then 4 and 13,781,878.75 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 | 55,127,515 | |
| -1 | 55,127,515 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 269 | 1,345 | 2,411 | 4,573 | 12,055 | 22,865 | 40,987 | 204,935 | 648,559 | 3,242,795 | 11,025,503 | 55,127,515 |
| -1 | -5 | -17 | -85 | -269 | -1,345 | -2,411 | -4,573 | -12,055 | -22,865 | -40,987 | -204,935 | -648,559 | -3,242,795 | -11,025,503 | -55,127,515 |
Here are some more numbers to try:
Try the factor calculator