A:
Positive:
1 x 22163323317 x 1303724919 x 11664907181 x 1224493223 x 993871289 x 766897323 x 6861713077 x 720293439 x 644473791 x 584634237 x 523095491 x 40363
Negative:
-1 x -221633233-17 x -13037249-19 x -11664907-181 x -1224493-223 x -993871-289 x -766897-323 x -686171-3077 x -72029-3439 x -64447-3791 x -58463-4237 x -52309-5491 x -40363
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 221,633,233, 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 | 221,633,233 | |
| -1 | -221,633,233 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 221,633,233.
Example:
1 x 221,633,233 = 221,633,233
and
-1 x -221,633,233 = 221,633,233
Notice both answers equal 221,633,233
With that explanation out of the way, let's continue. Next, we take the number 221,633,233 and divide it by 2:
221,633,233 ÷ 2 = 110,816,616.5
If the quotient is a whole number, then 2 and 110,816,616.5 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 | 221,633,233 | |
| -1 | -221,633,233 |
Now, we try dividing 221,633,233 by 3:
221,633,233 ÷ 3 = 73,877,744.3333
If the quotient is a whole number, then 3 and 73,877,744.3333 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 | 221,633,233 | |
| -1 | -221,633,233 |
Let's try dividing by 4:
221,633,233 ÷ 4 = 55,408,308.25
If the quotient is a whole number, then 4 and 55,408,308.25 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 | 221,633,233 | |
| -1 | 221,633,233 |
If you did it right, you will end up with this table:
| 1 | 17 | 19 | 181 | 223 | 289 | 323 | 3,077 | 3,439 | 3,791 | 4,237 | 5,491 | 40,363 | 52,309 | 58,463 | 64,447 | 72,029 | 686,171 | 766,897 | 993,871 | 1,224,493 | 11,664,907 | 13,037,249 | 221,633,233 |
| -1 | -17 | -19 | -181 | -223 | -289 | -323 | -3,077 | -3,439 | -3,791 | -4,237 | -5,491 | -40,363 | -52,309 | -58,463 | -64,447 | -72,029 | -686,171 | -766,897 | -993,871 | -1,224,493 | -11,664,907 | -13,037,249 | -221,633,233 |
Here are some more numbers to try:
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