A:
Positive:
1 x 275178617 x 393112349 x 56158973 x 376957157 x 175273343 x 80227511 x 538511099 x 250392401 x 114613577 x 7693
Negative:
-1 x -27517861-7 x -3931123-49 x -561589-73 x -376957-157 x -175273-343 x -80227-511 x -53851-1099 x -25039-2401 x -11461-3577 x -7693
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 27,517,861, 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 | 27,517,861 | |
| -1 | -27,517,861 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 27,517,861.
Example:
1 x 27,517,861 = 27,517,861
and
-1 x -27,517,861 = 27,517,861
Notice both answers equal 27,517,861
With that explanation out of the way, let's continue. Next, we take the number 27,517,861 and divide it by 2:
27,517,861 ÷ 2 = 13,758,930.5
If the quotient is a whole number, then 2 and 13,758,930.5 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 | 27,517,861 | |
| -1 | -27,517,861 |
Now, we try dividing 27,517,861 by 3:
27,517,861 ÷ 3 = 9,172,620.3333
If the quotient is a whole number, then 3 and 9,172,620.3333 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 | 27,517,861 | |
| -1 | -27,517,861 |
Let's try dividing by 4:
27,517,861 ÷ 4 = 6,879,465.25
If the quotient is a whole number, then 4 and 6,879,465.25 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 | 27,517,861 | |
| -1 | 27,517,861 |
If you did it right, you will end up with this table:
| 1 | 7 | 49 | 73 | 157 | 343 | 511 | 1,099 | 2,401 | 3,577 | 7,693 | 11,461 | 25,039 | 53,851 | 80,227 | 175,273 | 376,957 | 561,589 | 3,931,123 | 27,517,861 |
| -1 | -7 | -49 | -73 | -157 | -343 | -511 | -1,099 | -2,401 | -3,577 | -7,693 | -11,461 | -25,039 | -53,851 | -80,227 | -175,273 | -376,957 | -561,589 | -3,931,123 | -27,517,861 |
Here are some more numbers to try:
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