A:
Positive:
1 x 21653755 x 43307517 x 12737525 x 8661585 x 25475125 x 17323425 x 50951019 x 2125
Negative:
-1 x -2165375-5 x -433075-17 x -127375-25 x -86615-85 x -25475-125 x -17323-425 x -5095-1019 x -2125
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 2,165,375, 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 | 2,165,375 | |
| -1 | -2,165,375 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 2,165,375.
Example:
1 x 2,165,375 = 2,165,375
and
-1 x -2,165,375 = 2,165,375
Notice both answers equal 2,165,375
With that explanation out of the way, let's continue. Next, we take the number 2,165,375 and divide it by 2:
2,165,375 ÷ 2 = 1,082,687.5
If the quotient is a whole number, then 2 and 1,082,687.5 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 | 2,165,375 | |
| -1 | -2,165,375 |
Now, we try dividing 2,165,375 by 3:
2,165,375 ÷ 3 = 721,791.6667
If the quotient is a whole number, then 3 and 721,791.6667 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 | 2,165,375 | |
| -1 | -2,165,375 |
Let's try dividing by 4:
2,165,375 ÷ 4 = 541,343.75
If the quotient is a whole number, then 4 and 541,343.75 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 | 2,165,375 | |
| -1 | 2,165,375 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 25 | 85 | 125 | 425 | 1,019 | 2,125 | 5,095 | 17,323 | 25,475 | 86,615 | 127,375 | 433,075 | 2,165,375 |
| -1 | -5 | -17 | -25 | -85 | -125 | -425 | -1,019 | -2,125 | -5,095 | -17,323 | -25,475 | -86,615 | -127,375 | -433,075 | -2,165,375 |
Here are some more numbers to try:
Try the factor calculator