A:
Positive:
1 x 258277455 x 516554919 x 135935541 x 62994595 x 271871205 x 125989349 x 74005361 x 71545779 x 331551745 x 148011805 x 143093895 x 6631
Negative:
-1 x -25827745-5 x -5165549-19 x -1359355-41 x -629945-95 x -271871-205 x -125989-349 x -74005-361 x -71545-779 x -33155-1745 x -14801-1805 x -14309-3895 x -6631
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 25,827,745, 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 | 25,827,745 | |
| -1 | -25,827,745 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,827,745.
Example:
1 x 25,827,745 = 25,827,745
and
-1 x -25,827,745 = 25,827,745
Notice both answers equal 25,827,745
With that explanation out of the way, let's continue. Next, we take the number 25,827,745 and divide it by 2:
25,827,745 ÷ 2 = 12,913,872.5
If the quotient is a whole number, then 2 and 12,913,872.5 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 | 25,827,745 | |
| -1 | -25,827,745 |
Now, we try dividing 25,827,745 by 3:
25,827,745 ÷ 3 = 8,609,248.3333
If the quotient is a whole number, then 3 and 8,609,248.3333 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 | 25,827,745 | |
| -1 | -25,827,745 |
Let's try dividing by 4:
25,827,745 ÷ 4 = 6,456,936.25
If the quotient is a whole number, then 4 and 6,456,936.25 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 | 25,827,745 | |
| -1 | 25,827,745 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 41 | 95 | 205 | 349 | 361 | 779 | 1,745 | 1,805 | 3,895 | 6,631 | 14,309 | 14,801 | 33,155 | 71,545 | 74,005 | 125,989 | 271,871 | 629,945 | 1,359,355 | 5,165,549 | 25,827,745 |
| -1 | -5 | -19 | -41 | -95 | -205 | -349 | -361 | -779 | -1,745 | -1,805 | -3,895 | -6,631 | -14,309 | -14,801 | -33,155 | -71,545 | -74,005 | -125,989 | -271,871 | -629,945 | -1,359,355 | -5,165,549 | -25,827,745 |
Here are some more numbers to try:
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