A:
Positive:
1 x 2218783917 x 130516719 x 116778173 x 303943323 x 68693941 x 235791241 x 178791387 x 15997
Negative:
-1 x -22187839-17 x -1305167-19 x -1167781-73 x -303943-323 x -68693-941 x -23579-1241 x -17879-1387 x -15997
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 22,187,839, 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 | 22,187,839 | |
| -1 | -22,187,839 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 22,187,839.
Example:
1 x 22,187,839 = 22,187,839
and
-1 x -22,187,839 = 22,187,839
Notice both answers equal 22,187,839
With that explanation out of the way, let's continue. Next, we take the number 22,187,839 and divide it by 2:
22,187,839 ÷ 2 = 11,093,919.5
If the quotient is a whole number, then 2 and 11,093,919.5 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 | 22,187,839 | |
| -1 | -22,187,839 |
Now, we try dividing 22,187,839 by 3:
22,187,839 ÷ 3 = 7,395,946.3333
If the quotient is a whole number, then 3 and 7,395,946.3333 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 | 22,187,839 | |
| -1 | -22,187,839 |
Let's try dividing by 4:
22,187,839 ÷ 4 = 5,546,959.75
If the quotient is a whole number, then 4 and 5,546,959.75 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 | 22,187,839 | |
| -1 | 22,187,839 |
If you did it right, you will end up with this table:
| 1 | 17 | 19 | 73 | 323 | 941 | 1,241 | 1,387 | 15,997 | 17,879 | 23,579 | 68,693 | 303,943 | 1,167,781 | 1,305,167 | 22,187,839 |
| -1 | -17 | -19 | -73 | -323 | -941 | -1,241 | -1,387 | -15,997 | -17,879 | -23,579 | -68,693 | -303,943 | -1,167,781 | -1,305,167 | -22,187,839 |
Here are some more numbers to try:
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