A:
Positive:
1 x 2772613697 x 3960876711 x 2520557977 x 3600797131 x 2116499917 x 3023571441 x 19240910087 x 27487
Negative:
-1 x -277261369-7 x -39608767-11 x -25205579-77 x -3600797-131 x -2116499-917 x -302357-1441 x -192409-10087 x -27487
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 277,261,369, 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 | 277,261,369 | |
| -1 | -277,261,369 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 277,261,369.
Example:
1 x 277,261,369 = 277,261,369
and
-1 x -277,261,369 = 277,261,369
Notice both answers equal 277,261,369
With that explanation out of the way, let's continue. Next, we take the number 277,261,369 and divide it by 2:
277,261,369 ÷ 2 = 138,630,684.5
If the quotient is a whole number, then 2 and 138,630,684.5 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 | 277,261,369 | |
| -1 | -277,261,369 |
Now, we try dividing 277,261,369 by 3:
277,261,369 ÷ 3 = 92,420,456.3333
If the quotient is a whole number, then 3 and 92,420,456.3333 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 | 277,261,369 | |
| -1 | -277,261,369 |
Let's try dividing by 4:
277,261,369 ÷ 4 = 69,315,342.25
If the quotient is a whole number, then 4 and 69,315,342.25 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 | 277,261,369 | |
| -1 | 277,261,369 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 131 | 917 | 1,441 | 10,087 | 27,487 | 192,409 | 302,357 | 2,116,499 | 3,600,797 | 25,205,579 | 39,608,767 | 277,261,369 |
| -1 | -7 | -11 | -77 | -131 | -917 | -1,441 | -10,087 | -27,487 | -192,409 | -302,357 | -2,116,499 | -3,600,797 | -25,205,579 | -39,608,767 | -277,261,369 |
Here are some more numbers to try:
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