A:
Positive:
1 x 274512555 x 549025113 x 211163529 x 94659565 x 422327145 x 189319377 x 728151885 x 14563
Negative:
-1 x -27451255-5 x -5490251-13 x -2111635-29 x -946595-65 x -422327-145 x -189319-377 x -72815-1885 x -14563
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 27,451,255, 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 | 27,451,255 | |
| -1 | -27,451,255 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 27,451,255.
Example:
1 x 27,451,255 = 27,451,255
and
-1 x -27,451,255 = 27,451,255
Notice both answers equal 27,451,255
With that explanation out of the way, let's continue. Next, we take the number 27,451,255 and divide it by 2:
27,451,255 ÷ 2 = 13,725,627.5
If the quotient is a whole number, then 2 and 13,725,627.5 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 | 27,451,255 | |
| -1 | -27,451,255 |
Now, we try dividing 27,451,255 by 3:
27,451,255 ÷ 3 = 9,150,418.3333
If the quotient is a whole number, then 3 and 9,150,418.3333 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 | 27,451,255 | |
| -1 | -27,451,255 |
Let's try dividing by 4:
27,451,255 ÷ 4 = 6,862,813.75
If the quotient is a whole number, then 4 and 6,862,813.75 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 | 27,451,255 | |
| -1 | 27,451,255 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 29 | 65 | 145 | 377 | 1,885 | 14,563 | 72,815 | 189,319 | 422,327 | 946,595 | 2,111,635 | 5,490,251 | 27,451,255 |
| -1 | -5 | -13 | -29 | -65 | -145 | -377 | -1,885 | -14,563 | -72,815 | -189,319 | -422,327 | -946,595 | -2,111,635 | -5,490,251 | -27,451,255 |
Here are some more numbers to try:
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