A:
Positive:
1 x 279631877 x 399474167 x 417361109 x 256543469 x 59623547 x 51121763 x 366493829 x 7303
Negative:
-1 x -27963187-7 x -3994741-67 x -417361-109 x -256543-469 x -59623-547 x -51121-763 x -36649-3829 x -7303
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 27,963,187, 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 | 27,963,187 | |
| -1 | -27,963,187 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 27,963,187.
Example:
1 x 27,963,187 = 27,963,187
and
-1 x -27,963,187 = 27,963,187
Notice both answers equal 27,963,187
With that explanation out of the way, let's continue. Next, we take the number 27,963,187 and divide it by 2:
27,963,187 ÷ 2 = 13,981,593.5
If the quotient is a whole number, then 2 and 13,981,593.5 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 | 27,963,187 | |
| -1 | -27,963,187 |
Now, we try dividing 27,963,187 by 3:
27,963,187 ÷ 3 = 9,321,062.3333
If the quotient is a whole number, then 3 and 9,321,062.3333 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 | 27,963,187 | |
| -1 | -27,963,187 |
Let's try dividing by 4:
27,963,187 ÷ 4 = 6,990,796.75
If the quotient is a whole number, then 4 and 6,990,796.75 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 | 27,963,187 | |
| -1 | 27,963,187 |
If you did it right, you will end up with this table:
| 1 | 7 | 67 | 109 | 469 | 547 | 763 | 3,829 | 7,303 | 36,649 | 51,121 | 59,623 | 256,543 | 417,361 | 3,994,741 | 27,963,187 |
| -1 | -7 | -67 | -109 | -469 | -547 | -763 | -3,829 | -7,303 | -36,649 | -51,121 | -59,623 | -256,543 | -417,361 | -3,994,741 | -27,963,187 |
Here are some more numbers to try:
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