A:
Positive:
1 x 21313755 x 42627517 x 12537525 x 8525559 x 3612585 x 25075125 x 17051289 x 7375295 x 7225425 x 50151003 x 21251445 x 1475
Negative:
-1 x -2131375-5 x -426275-17 x -125375-25 x -85255-59 x -36125-85 x -25075-125 x -17051-289 x -7375-295 x -7225-425 x -5015-1003 x -2125-1445 x -1475
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 2,131,375, 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 | 2,131,375 | |
| -1 | -2,131,375 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 2,131,375.
Example:
1 x 2,131,375 = 2,131,375
and
-1 x -2,131,375 = 2,131,375
Notice both answers equal 2,131,375
With that explanation out of the way, let's continue. Next, we take the number 2,131,375 and divide it by 2:
2,131,375 ÷ 2 = 1,065,687.5
If the quotient is a whole number, then 2 and 1,065,687.5 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 | 2,131,375 | |
| -1 | -2,131,375 |
Now, we try dividing 2,131,375 by 3:
2,131,375 ÷ 3 = 710,458.3333
If the quotient is a whole number, then 3 and 710,458.3333 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 | 2,131,375 | |
| -1 | -2,131,375 |
Let's try dividing by 4:
2,131,375 ÷ 4 = 532,843.75
If the quotient is a whole number, then 4 and 532,843.75 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 | 2,131,375 | |
| -1 | 2,131,375 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 25 | 59 | 85 | 125 | 289 | 295 | 425 | 1,003 | 1,445 | 1,475 | 2,125 | 5,015 | 7,225 | 7,375 | 17,051 | 25,075 | 36,125 | 85,255 | 125,375 | 426,275 | 2,131,375 |
| -1 | -5 | -17 | -25 | -59 | -85 | -125 | -289 | -295 | -425 | -1,003 | -1,445 | -1,475 | -2,125 | -5,015 | -7,225 | -7,375 | -17,051 | -25,075 | -36,125 | -85,255 | -125,375 | -426,275 | -2,131,375 |
Here are some more numbers to try:
Try the factor calculator