A:
Positive:
1 x 5513043055 x 11026086117 x 3242966585 x 6485933163 x 3382235815 x 6764472771 x 19895513855 x 39791
Negative:
-1 x -551304305-5 x -110260861-17 x -32429665-85 x -6485933-163 x -3382235-815 x -676447-2771 x -198955-13855 x -39791
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 551,304,305, 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 | 551,304,305 | |
| -1 | -551,304,305 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 551,304,305.
Example:
1 x 551,304,305 = 551,304,305
and
-1 x -551,304,305 = 551,304,305
Notice both answers equal 551,304,305
With that explanation out of the way, let's continue. Next, we take the number 551,304,305 and divide it by 2:
551,304,305 ÷ 2 = 275,652,152.5
If the quotient is a whole number, then 2 and 275,652,152.5 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 | 551,304,305 | |
| -1 | -551,304,305 |
Now, we try dividing 551,304,305 by 3:
551,304,305 ÷ 3 = 183,768,101.6667
If the quotient is a whole number, then 3 and 183,768,101.6667 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 | 551,304,305 | |
| -1 | -551,304,305 |
Let's try dividing by 4:
551,304,305 ÷ 4 = 137,826,076.25
If the quotient is a whole number, then 4 and 137,826,076.25 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 | 551,304,305 | |
| -1 | 551,304,305 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 163 | 815 | 2,771 | 13,855 | 39,791 | 198,955 | 676,447 | 3,382,235 | 6,485,933 | 32,429,665 | 110,260,861 | 551,304,305 |
| -1 | -5 | -17 | -85 | -163 | -815 | -2,771 | -13,855 | -39,791 | -198,955 | -676,447 | -3,382,235 | -6,485,933 | -32,429,665 | -110,260,861 | -551,304,305 |
Here are some more numbers to try:
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