A:
Positive:
1 x 214936337 x 307051931 x 69334337 x 580909217 x 99049259 x 829871147 x 187392677 x 8029
Negative:
-1 x -21493633-7 x -3070519-31 x -693343-37 x -580909-217 x -99049-259 x -82987-1147 x -18739-2677 x -8029
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 21,493,633, 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 | 21,493,633 | |
| -1 | -21,493,633 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 21,493,633.
Example:
1 x 21,493,633 = 21,493,633
and
-1 x -21,493,633 = 21,493,633
Notice both answers equal 21,493,633
With that explanation out of the way, let's continue. Next, we take the number 21,493,633 and divide it by 2:
21,493,633 ÷ 2 = 10,746,816.5
If the quotient is a whole number, then 2 and 10,746,816.5 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 | 21,493,633 | |
| -1 | -21,493,633 |
Now, we try dividing 21,493,633 by 3:
21,493,633 ÷ 3 = 7,164,544.3333
If the quotient is a whole number, then 3 and 7,164,544.3333 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 | 21,493,633 | |
| -1 | -21,493,633 |
Let's try dividing by 4:
21,493,633 ÷ 4 = 5,373,408.25
If the quotient is a whole number, then 4 and 5,373,408.25 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 | 21,493,633 | |
| -1 | 21,493,633 |
If you did it right, you will end up with this table:
| 1 | 7 | 31 | 37 | 217 | 259 | 1,147 | 2,677 | 8,029 | 18,739 | 82,987 | 99,049 | 580,909 | 693,343 | 3,070,519 | 21,493,633 |
| -1 | -7 | -31 | -37 | -217 | -259 | -1,147 | -2,677 | -8,029 | -18,739 | -82,987 | -99,049 | -580,909 | -693,343 | -3,070,519 | -21,493,633 |
Here are some more numbers to try:
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