A:
Positive:
1 x 277608655 x 555217311 x 252371555 x 504743131 x 211915655 x 423831441 x 192653853 x 7205
Negative:
-1 x -27760865-5 x -5552173-11 x -2523715-55 x -504743-131 x -211915-655 x -42383-1441 x -19265-3853 x -7205
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 27,760,865, 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 | 27,760,865 | |
| -1 | -27,760,865 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 27,760,865.
Example:
1 x 27,760,865 = 27,760,865
and
-1 x -27,760,865 = 27,760,865
Notice both answers equal 27,760,865
With that explanation out of the way, let's continue. Next, we take the number 27,760,865 and divide it by 2:
27,760,865 ÷ 2 = 13,880,432.5
If the quotient is a whole number, then 2 and 13,880,432.5 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 | 27,760,865 | |
| -1 | -27,760,865 |
Now, we try dividing 27,760,865 by 3:
27,760,865 ÷ 3 = 9,253,621.6667
If the quotient is a whole number, then 3 and 9,253,621.6667 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 | 27,760,865 | |
| -1 | -27,760,865 |
Let's try dividing by 4:
27,760,865 ÷ 4 = 6,940,216.25
If the quotient is a whole number, then 4 and 6,940,216.25 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 | 27,760,865 | |
| -1 | 27,760,865 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 131 | 655 | 1,441 | 3,853 | 7,205 | 19,265 | 42,383 | 211,915 | 504,743 | 2,523,715 | 5,552,173 | 27,760,865 |
| -1 | -5 | -11 | -55 | -131 | -655 | -1,441 | -3,853 | -7,205 | -19,265 | -42,383 | -211,915 | -504,743 | -2,523,715 | -5,552,173 | -27,760,865 |
Here are some more numbers to try:
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