A:
Positive:
1 x 2305572113 x 177351719 x 1213459247 x 93343269 x 85709347 x 664433497 x 65934511 x 5111
Negative:
-1 x -23055721-13 x -1773517-19 x -1213459-247 x -93343-269 x -85709-347 x -66443-3497 x -6593-4511 x -5111
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 23,055,721, 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 | 23,055,721 | |
| -1 | -23,055,721 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 23,055,721.
Example:
1 x 23,055,721 = 23,055,721
and
-1 x -23,055,721 = 23,055,721
Notice both answers equal 23,055,721
With that explanation out of the way, let's continue. Next, we take the number 23,055,721 and divide it by 2:
23,055,721 ÷ 2 = 11,527,860.5
If the quotient is a whole number, then 2 and 11,527,860.5 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 | 23,055,721 | |
| -1 | -23,055,721 |
Now, we try dividing 23,055,721 by 3:
23,055,721 ÷ 3 = 7,685,240.3333
If the quotient is a whole number, then 3 and 7,685,240.3333 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 | 23,055,721 | |
| -1 | -23,055,721 |
Let's try dividing by 4:
23,055,721 ÷ 4 = 5,763,930.25
If the quotient is a whole number, then 4 and 5,763,930.25 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 | 23,055,721 | |
| -1 | 23,055,721 |
If you did it right, you will end up with this table:
| 1 | 13 | 19 | 247 | 269 | 347 | 3,497 | 4,511 | 5,111 | 6,593 | 66,443 | 85,709 | 93,343 | 1,213,459 | 1,773,517 | 23,055,721 |
| -1 | -13 | -19 | -247 | -269 | -347 | -3,497 | -4,511 | -5,111 | -6,593 | -66,443 | -85,709 | -93,343 | -1,213,459 | -1,773,517 | -23,055,721 |
Here are some more numbers to try:
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