A:
Positive:
1 x 38451255 x 76902519 x 20237525 x 15380595 x 40475125 x 30761475 x 80951619 x 2375
Negative:
-1 x -3845125-5 x -769025-19 x -202375-25 x -153805-95 x -40475-125 x -30761-475 x -8095-1619 x -2375
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 3,845,125, 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 | 3,845,125 | |
| -1 | -3,845,125 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,845,125.
Example:
1 x 3,845,125 = 3,845,125
and
-1 x -3,845,125 = 3,845,125
Notice both answers equal 3,845,125
With that explanation out of the way, let's continue. Next, we take the number 3,845,125 and divide it by 2:
3,845,125 ÷ 2 = 1,922,562.5
If the quotient is a whole number, then 2 and 1,922,562.5 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 | 3,845,125 | |
| -1 | -3,845,125 |
Now, we try dividing 3,845,125 by 3:
3,845,125 ÷ 3 = 1,281,708.3333
If the quotient is a whole number, then 3 and 1,281,708.3333 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 | 3,845,125 | |
| -1 | -3,845,125 |
Let's try dividing by 4:
3,845,125 ÷ 4 = 961,281.25
If the quotient is a whole number, then 4 and 961,281.25 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 | 3,845,125 | |
| -1 | 3,845,125 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 25 | 95 | 125 | 475 | 1,619 | 2,375 | 8,095 | 30,761 | 40,475 | 153,805 | 202,375 | 769,025 | 3,845,125 |
| -1 | -5 | -19 | -25 | -95 | -125 | -475 | -1,619 | -2,375 | -8,095 | -30,761 | -40,475 | -153,805 | -202,375 | -769,025 | -3,845,125 |
Here are some more numbers to try:
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