A:
Positive:
1 x 2153542923 x 93632329 x 74260183 x 259463389 x 55361667 x 322871909 x 112812407 x 8947
Negative:
-1 x -21535429-23 x -936323-29 x -742601-83 x -259463-389 x -55361-667 x -32287-1909 x -11281-2407 x -8947
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 21,535,429, 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 | 21,535,429 | |
| -1 | -21,535,429 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 21,535,429.
Example:
1 x 21,535,429 = 21,535,429
and
-1 x -21,535,429 = 21,535,429
Notice both answers equal 21,535,429
With that explanation out of the way, let's continue. Next, we take the number 21,535,429 and divide it by 2:
21,535,429 ÷ 2 = 10,767,714.5
If the quotient is a whole number, then 2 and 10,767,714.5 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 | 21,535,429 | |
| -1 | -21,535,429 |
Now, we try dividing 21,535,429 by 3:
21,535,429 ÷ 3 = 7,178,476.3333
If the quotient is a whole number, then 3 and 7,178,476.3333 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 | 21,535,429 | |
| -1 | -21,535,429 |
Let's try dividing by 4:
21,535,429 ÷ 4 = 5,383,857.25
If the quotient is a whole number, then 4 and 5,383,857.25 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 | 21,535,429 | |
| -1 | 21,535,429 |
If you did it right, you will end up with this table:
| 1 | 23 | 29 | 83 | 389 | 667 | 1,909 | 2,407 | 8,947 | 11,281 | 32,287 | 55,361 | 259,463 | 742,601 | 936,323 | 21,535,429 |
| -1 | -23 | -29 | -83 | -389 | -667 | -1,909 | -2,407 | -8,947 | -11,281 | -32,287 | -55,361 | -259,463 | -742,601 | -936,323 | -21,535,429 |
Here are some more numbers to try:
Try the factor calculator