A:
Positive:
1 x 248207477 x 354582137 x 67083147 x 528101259 x 95833329 x 754431739 x 142732039 x 12173
Negative:
-1 x -24820747-7 x -3545821-37 x -670831-47 x -528101-259 x -95833-329 x -75443-1739 x -14273-2039 x -12173
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 24,820,747, 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 | 24,820,747 | |
| -1 | -24,820,747 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 24,820,747.
Example:
1 x 24,820,747 = 24,820,747
and
-1 x -24,820,747 = 24,820,747
Notice both answers equal 24,820,747
With that explanation out of the way, let's continue. Next, we take the number 24,820,747 and divide it by 2:
24,820,747 ÷ 2 = 12,410,373.5
If the quotient is a whole number, then 2 and 12,410,373.5 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 | 24,820,747 | |
| -1 | -24,820,747 |
Now, we try dividing 24,820,747 by 3:
24,820,747 ÷ 3 = 8,273,582.3333
If the quotient is a whole number, then 3 and 8,273,582.3333 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 | 24,820,747 | |
| -1 | -24,820,747 |
Let's try dividing by 4:
24,820,747 ÷ 4 = 6,205,186.75
If the quotient is a whole number, then 4 and 6,205,186.75 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 | 24,820,747 | |
| -1 | 24,820,747 |
If you did it right, you will end up with this table:
| 1 | 7 | 37 | 47 | 259 | 329 | 1,739 | 2,039 | 12,173 | 14,273 | 75,443 | 95,833 | 528,101 | 670,831 | 3,545,821 | 24,820,747 |
| -1 | -7 | -37 | -47 | -259 | -329 | -1,739 | -2,039 | -12,173 | -14,273 | -75,443 | -95,833 | -528,101 | -670,831 | -3,545,821 | -24,820,747 |
Here are some more numbers to try:
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