A:
Positive:
1 x 2772667755 x 5545335525 x 1109067173 x 3798175139 x 1994725365 x 759635695 x 3989451093 x 2536751825 x 1519273475 x 797895465 x 5073510147 x 27325
Negative:
-1 x -277266775-5 x -55453355-25 x -11090671-73 x -3798175-139 x -1994725-365 x -759635-695 x -398945-1093 x -253675-1825 x -151927-3475 x -79789-5465 x -50735-10147 x -27325
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 277,266,775, 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 | 277,266,775 | |
| -1 | -277,266,775 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 277,266,775.
Example:
1 x 277,266,775 = 277,266,775
and
-1 x -277,266,775 = 277,266,775
Notice both answers equal 277,266,775
With that explanation out of the way, let's continue. Next, we take the number 277,266,775 and divide it by 2:
277,266,775 ÷ 2 = 138,633,387.5
If the quotient is a whole number, then 2 and 138,633,387.5 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 | 277,266,775 | |
| -1 | -277,266,775 |
Now, we try dividing 277,266,775 by 3:
277,266,775 ÷ 3 = 92,422,258.3333
If the quotient is a whole number, then 3 and 92,422,258.3333 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 | 277,266,775 | |
| -1 | -277,266,775 |
Let's try dividing by 4:
277,266,775 ÷ 4 = 69,316,693.75
If the quotient is a whole number, then 4 and 69,316,693.75 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 | 277,266,775 | |
| -1 | 277,266,775 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 73 | 139 | 365 | 695 | 1,093 | 1,825 | 3,475 | 5,465 | 10,147 | 27,325 | 50,735 | 79,789 | 151,927 | 253,675 | 398,945 | 759,635 | 1,994,725 | 3,798,175 | 11,090,671 | 55,453,355 | 277,266,775 |
| -1 | -5 | -25 | -73 | -139 | -365 | -695 | -1,093 | -1,825 | -3,475 | -5,465 | -10,147 | -27,325 | -50,735 | -79,789 | -151,927 | -253,675 | -398,945 | -759,635 | -1,994,725 | -3,798,175 | -11,090,671 | -55,453,355 | -277,266,775 |
Here are some more numbers to try:
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