A:
Positive:
1 x 1121321311 x 101938323 x 48753141 x 27349347 x 238579253 x 44321451 x 24863517 x 21689529 x 21197943 x 118911081 x 103731927 x 5819
Negative:
-1 x -11213213-11 x -1019383-23 x -487531-41 x -273493-47 x -238579-253 x -44321-451 x -24863-517 x -21689-529 x -21197-943 x -11891-1081 x -10373-1927 x -5819
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 11,213,213, 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 | 11,213,213 | |
| -1 | -11,213,213 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 11,213,213.
Example:
1 x 11,213,213 = 11,213,213
and
-1 x -11,213,213 = 11,213,213
Notice both answers equal 11,213,213
With that explanation out of the way, let's continue. Next, we take the number 11,213,213 and divide it by 2:
11,213,213 ÷ 2 = 5,606,606.5
If the quotient is a whole number, then 2 and 5,606,606.5 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 | 11,213,213 | |
| -1 | -11,213,213 |
Now, we try dividing 11,213,213 by 3:
11,213,213 ÷ 3 = 3,737,737.6667
If the quotient is a whole number, then 3 and 3,737,737.6667 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 | 11,213,213 | |
| -1 | -11,213,213 |
Let's try dividing by 4:
11,213,213 ÷ 4 = 2,803,303.25
If the quotient is a whole number, then 4 and 2,803,303.25 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 | 11,213,213 | |
| -1 | 11,213,213 |
If you did it right, you will end up with this table:
| 1 | 11 | 23 | 41 | 47 | 253 | 451 | 517 | 529 | 943 | 1,081 | 1,927 | 5,819 | 10,373 | 11,891 | 21,197 | 21,689 | 24,863 | 44,321 | 238,579 | 273,493 | 487,531 | 1,019,383 | 11,213,213 |
| -1 | -11 | -23 | -41 | -47 | -253 | -451 | -517 | -529 | -943 | -1,081 | -1,927 | -5,819 | -10,373 | -11,891 | -21,197 | -21,689 | -24,863 | -44,321 | -238,579 | -273,493 | -487,531 | -1,019,383 | -11,213,213 |
Here are some more numbers to try:
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