A:
Positive:
1 x 2766075137 x 3951535913 x 2127750131 x 892282391 x 3039643217 x 1274689403 x 686371961 x 2878332821 x 980533163 x 874516727 x 4111912493 x 22141
Negative:
-1 x -276607513-7 x -39515359-13 x -21277501-31 x -8922823-91 x -3039643-217 x -1274689-403 x -686371-961 x -287833-2821 x -98053-3163 x -87451-6727 x -41119-12493 x -22141
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 276,607,513, 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 | 276,607,513 | |
| -1 | -276,607,513 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 276,607,513.
Example:
1 x 276,607,513 = 276,607,513
and
-1 x -276,607,513 = 276,607,513
Notice both answers equal 276,607,513
With that explanation out of the way, let's continue. Next, we take the number 276,607,513 and divide it by 2:
276,607,513 ÷ 2 = 138,303,756.5
If the quotient is a whole number, then 2 and 138,303,756.5 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 | 276,607,513 | |
| -1 | -276,607,513 |
Now, we try dividing 276,607,513 by 3:
276,607,513 ÷ 3 = 92,202,504.3333
If the quotient is a whole number, then 3 and 92,202,504.3333 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 | 276,607,513 | |
| -1 | -276,607,513 |
Let's try dividing by 4:
276,607,513 ÷ 4 = 69,151,878.25
If the quotient is a whole number, then 4 and 69,151,878.25 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 | 276,607,513 | |
| -1 | 276,607,513 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 31 | 91 | 217 | 403 | 961 | 2,821 | 3,163 | 6,727 | 12,493 | 22,141 | 41,119 | 87,451 | 98,053 | 287,833 | 686,371 | 1,274,689 | 3,039,643 | 8,922,823 | 21,277,501 | 39,515,359 | 276,607,513 |
| -1 | -7 | -13 | -31 | -91 | -217 | -403 | -961 | -2,821 | -3,163 | -6,727 | -12,493 | -22,141 | -41,119 | -87,451 | -98,053 | -287,833 | -686,371 | -1,274,689 | -3,039,643 | -8,922,823 | -21,277,501 | -39,515,359 | -276,607,513 |
Here are some more numbers to try:
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