A:
Positive:
1 x 21433097 x 30618717 x 12607731 x 6913949 x 4374183 x 25823119 x 18011217 x 9877527 x 4067581 x 3689833 x 25731411 x 1519
Negative:
-1 x -2143309-7 x -306187-17 x -126077-31 x -69139-49 x -43741-83 x -25823-119 x -18011-217 x -9877-527 x -4067-581 x -3689-833 x -2573-1411 x -1519
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 2,143,309, 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 | 2,143,309 | |
| -1 | -2,143,309 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 2,143,309.
Example:
1 x 2,143,309 = 2,143,309
and
-1 x -2,143,309 = 2,143,309
Notice both answers equal 2,143,309
With that explanation out of the way, let's continue. Next, we take the number 2,143,309 and divide it by 2:
2,143,309 ÷ 2 = 1,071,654.5
If the quotient is a whole number, then 2 and 1,071,654.5 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 | 2,143,309 | |
| -1 | -2,143,309 |
Now, we try dividing 2,143,309 by 3:
2,143,309 ÷ 3 = 714,436.3333
If the quotient is a whole number, then 3 and 714,436.3333 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 | 2,143,309 | |
| -1 | -2,143,309 |
Let's try dividing by 4:
2,143,309 ÷ 4 = 535,827.25
If the quotient is a whole number, then 4 and 535,827.25 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 | 2,143,309 | |
| -1 | 2,143,309 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 31 | 49 | 83 | 119 | 217 | 527 | 581 | 833 | 1,411 | 1,519 | 2,573 | 3,689 | 4,067 | 9,877 | 18,011 | 25,823 | 43,741 | 69,139 | 126,077 | 306,187 | 2,143,309 |
| -1 | -7 | -17 | -31 | -49 | -83 | -119 | -217 | -527 | -581 | -833 | -1,411 | -1,519 | -2,573 | -3,689 | -4,067 | -9,877 | -18,011 | -25,823 | -43,741 | -69,139 | -126,077 | -306,187 | -2,143,309 |
Here are some more numbers to try:
Try the factor calculator