A:
Positive:
1 x 259970755 x 519941513 x 199977525 x 103988341 x 63407565 x 399955205 x 126815325 x 79991533 x 487751025 x 253631951 x 133252665 x 9755
Negative:
-1 x -25997075-5 x -5199415-13 x -1999775-25 x -1039883-41 x -634075-65 x -399955-205 x -126815-325 x -79991-533 x -48775-1025 x -25363-1951 x -13325-2665 x -9755
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 25,997,075, 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 | 25,997,075 | |
| -1 | -25,997,075 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,997,075.
Example:
1 x 25,997,075 = 25,997,075
and
-1 x -25,997,075 = 25,997,075
Notice both answers equal 25,997,075
With that explanation out of the way, let's continue. Next, we take the number 25,997,075 and divide it by 2:
25,997,075 ÷ 2 = 12,998,537.5
If the quotient is a whole number, then 2 and 12,998,537.5 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 | 25,997,075 | |
| -1 | -25,997,075 |
Now, we try dividing 25,997,075 by 3:
25,997,075 ÷ 3 = 8,665,691.6667
If the quotient is a whole number, then 3 and 8,665,691.6667 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 | 25,997,075 | |
| -1 | -25,997,075 |
Let's try dividing by 4:
25,997,075 ÷ 4 = 6,499,268.75
If the quotient is a whole number, then 4 and 6,499,268.75 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 | 25,997,075 | |
| -1 | 25,997,075 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 25 | 41 | 65 | 205 | 325 | 533 | 1,025 | 1,951 | 2,665 | 9,755 | 13,325 | 25,363 | 48,775 | 79,991 | 126,815 | 399,955 | 634,075 | 1,039,883 | 1,999,775 | 5,199,415 | 25,997,075 |
| -1 | -5 | -13 | -25 | -41 | -65 | -205 | -325 | -533 | -1,025 | -1,951 | -2,665 | -9,755 | -13,325 | -25,363 | -48,775 | -79,991 | -126,815 | -399,955 | -634,075 | -1,039,883 | -1,999,775 | -5,199,415 | -25,997,075 |
Here are some more numbers to try:
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