A:
Positive:
1 x 515553055 x 1031106117 x 303266523 x 224153585 x 606533115 x 448307391 x 1318551955 x 26371
Negative:
-1 x -51555305-5 x -10311061-17 x -3032665-23 x -2241535-85 x -606533-115 x -448307-391 x -131855-1955 x -26371
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 51,555,305, 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 | 51,555,305 | |
| -1 | -51,555,305 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 51,555,305.
Example:
1 x 51,555,305 = 51,555,305
and
-1 x -51,555,305 = 51,555,305
Notice both answers equal 51,555,305
With that explanation out of the way, let's continue. Next, we take the number 51,555,305 and divide it by 2:
51,555,305 ÷ 2 = 25,777,652.5
If the quotient is a whole number, then 2 and 25,777,652.5 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 | 51,555,305 | |
| -1 | -51,555,305 |
Now, we try dividing 51,555,305 by 3:
51,555,305 ÷ 3 = 17,185,101.6667
If the quotient is a whole number, then 3 and 17,185,101.6667 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 | 51,555,305 | |
| -1 | -51,555,305 |
Let's try dividing by 4:
51,555,305 ÷ 4 = 12,888,826.25
If the quotient is a whole number, then 4 and 12,888,826.25 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 | 51,555,305 | |
| -1 | 51,555,305 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 23 | 85 | 115 | 391 | 1,955 | 26,371 | 131,855 | 448,307 | 606,533 | 2,241,535 | 3,032,665 | 10,311,061 | 51,555,305 |
| -1 | -5 | -17 | -23 | -85 | -115 | -391 | -1,955 | -26,371 | -131,855 | -448,307 | -606,533 | -2,241,535 | -3,032,665 | -10,311,061 | -51,555,305 |
Here are some more numbers to try:
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