A:
Positive:
1 x 255427455 x 510854919 x 134435567 x 38123595 x 268871335 x 762471273 x 200654013 x 6365
Negative:
-1 x -25542745-5 x -5108549-19 x -1344355-67 x -381235-95 x -268871-335 x -76247-1273 x -20065-4013 x -6365
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 25,542,745, 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 | 25,542,745 | |
| -1 | -25,542,745 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,542,745.
Example:
1 x 25,542,745 = 25,542,745
and
-1 x -25,542,745 = 25,542,745
Notice both answers equal 25,542,745
With that explanation out of the way, let's continue. Next, we take the number 25,542,745 and divide it by 2:
25,542,745 ÷ 2 = 12,771,372.5
If the quotient is a whole number, then 2 and 12,771,372.5 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 | 25,542,745 | |
| -1 | -25,542,745 |
Now, we try dividing 25,542,745 by 3:
25,542,745 ÷ 3 = 8,514,248.3333
If the quotient is a whole number, then 3 and 8,514,248.3333 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 | 25,542,745 | |
| -1 | -25,542,745 |
Let's try dividing by 4:
25,542,745 ÷ 4 = 6,385,686.25
If the quotient is a whole number, then 4 and 6,385,686.25 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 | 25,542,745 | |
| -1 | 25,542,745 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 67 | 95 | 335 | 1,273 | 4,013 | 6,365 | 20,065 | 76,247 | 268,871 | 381,235 | 1,344,355 | 5,108,549 | 25,542,745 |
| -1 | -5 | -19 | -67 | -95 | -335 | -1,273 | -4,013 | -6,365 | -20,065 | -76,247 | -268,871 | -381,235 | -1,344,355 | -5,108,549 | -25,542,745 |
Here are some more numbers to try:
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