A:
Positive:
1 x 42402255 x 84804511 x 38547517 x 24942525 x 16960955 x 7709585 x 49885187 x 22675275 x 15419425 x 9977907 x 4675935 x 4535
Negative:
-1 x -4240225-5 x -848045-11 x -385475-17 x -249425-25 x -169609-55 x -77095-85 x -49885-187 x -22675-275 x -15419-425 x -9977-907 x -4675-935 x -4535
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 4,240,225, 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 | 4,240,225 | |
| -1 | -4,240,225 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 4,240,225.
Example:
1 x 4,240,225 = 4,240,225
and
-1 x -4,240,225 = 4,240,225
Notice both answers equal 4,240,225
With that explanation out of the way, let's continue. Next, we take the number 4,240,225 and divide it by 2:
4,240,225 ÷ 2 = 2,120,112.5
If the quotient is a whole number, then 2 and 2,120,112.5 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 | 4,240,225 | |
| -1 | -4,240,225 |
Now, we try dividing 4,240,225 by 3:
4,240,225 ÷ 3 = 1,413,408.3333
If the quotient is a whole number, then 3 and 1,413,408.3333 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 | 4,240,225 | |
| -1 | -4,240,225 |
Let's try dividing by 4:
4,240,225 ÷ 4 = 1,060,056.25
If the quotient is a whole number, then 4 and 1,060,056.25 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 | 4,240,225 | |
| -1 | 4,240,225 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 17 | 25 | 55 | 85 | 187 | 275 | 425 | 907 | 935 | 4,535 | 4,675 | 9,977 | 15,419 | 22,675 | 49,885 | 77,095 | 169,609 | 249,425 | 385,475 | 848,045 | 4,240,225 |
| -1 | -5 | -11 | -17 | -25 | -55 | -85 | -187 | -275 | -425 | -907 | -935 | -4,535 | -4,675 | -9,977 | -15,419 | -22,675 | -49,885 | -77,095 | -169,609 | -249,425 | -385,475 | -848,045 | -4,240,225 |
Here are some more numbers to try:
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