A:
Positive:
1 x 21598017 x 30854331 x 6967137 x 58373217 x 9953259 x 8339269 x 80291147 x 1883
Negative:
-1 x -2159801-7 x -308543-31 x -69671-37 x -58373-217 x -9953-259 x -8339-269 x -8029-1147 x -1883
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 2,159,801, 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 | 2,159,801 | |
| -1 | -2,159,801 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 2,159,801.
Example:
1 x 2,159,801 = 2,159,801
and
-1 x -2,159,801 = 2,159,801
Notice both answers equal 2,159,801
With that explanation out of the way, let's continue. Next, we take the number 2,159,801 and divide it by 2:
2,159,801 ÷ 2 = 1,079,900.5
If the quotient is a whole number, then 2 and 1,079,900.5 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 | 2,159,801 | |
| -1 | -2,159,801 |
Now, we try dividing 2,159,801 by 3:
2,159,801 ÷ 3 = 719,933.6667
If the quotient is a whole number, then 3 and 719,933.6667 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 | 2,159,801 | |
| -1 | -2,159,801 |
Let's try dividing by 4:
2,159,801 ÷ 4 = 539,950.25
If the quotient is a whole number, then 4 and 539,950.25 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 | 2,159,801 | |
| -1 | 2,159,801 |
If you did it right, you will end up with this table:
| 1 | 7 | 31 | 37 | 217 | 259 | 269 | 1,147 | 1,883 | 8,029 | 8,339 | 9,953 | 58,373 | 69,671 | 308,543 | 2,159,801 |
| -1 | -7 | -31 | -37 | -217 | -259 | -269 | -1,147 | -1,883 | -8,029 | -8,339 | -9,953 | -58,373 | -69,671 | -308,543 | -2,159,801 |
Here are some more numbers to try:
Try the factor calculator