A:
Positive:
1 x 49456255 x 98912525 x 19782541 x 120625125 x 39565193 x 25625205 x 24125625 x 7913965 x 51251025 x 4825
Negative:
-1 x -4945625-5 x -989125-25 x -197825-41 x -120625-125 x -39565-193 x -25625-205 x -24125-625 x -7913-965 x -5125-1025 x -4825
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 4,945,625, 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 | 4,945,625 | |
| -1 | -4,945,625 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 4,945,625.
Example:
1 x 4,945,625 = 4,945,625
and
-1 x -4,945,625 = 4,945,625
Notice both answers equal 4,945,625
With that explanation out of the way, let's continue. Next, we take the number 4,945,625 and divide it by 2:
4,945,625 ÷ 2 = 2,472,812.5
If the quotient is a whole number, then 2 and 2,472,812.5 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 | 4,945,625 | |
| -1 | -4,945,625 |
Now, we try dividing 4,945,625 by 3:
4,945,625 ÷ 3 = 1,648,541.6667
If the quotient is a whole number, then 3 and 1,648,541.6667 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 | 4,945,625 | |
| -1 | -4,945,625 |
Let's try dividing by 4:
4,945,625 ÷ 4 = 1,236,406.25
If the quotient is a whole number, then 4 and 1,236,406.25 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 | 4,945,625 | |
| -1 | 4,945,625 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 41 | 125 | 193 | 205 | 625 | 965 | 1,025 | 4,825 | 5,125 | 7,913 | 24,125 | 25,625 | 39,565 | 120,625 | 197,825 | 989,125 | 4,945,625 |
| -1 | -5 | -25 | -41 | -125 | -193 | -205 | -625 | -965 | -1,025 | -4,825 | -5,125 | -7,913 | -24,125 | -25,625 | -39,565 | -120,625 | -197,825 | -989,125 | -4,945,625 |
Here are some more numbers to try:
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