A:
Positive:
1 x 2203616037 x 3148022911 x 2003287337 x 595571977 x 2861839259 x 850817407 x 5414292849 x 77347
Negative:
-1 x -220361603-7 x -31480229-11 x -20032873-37 x -5955719-77 x -2861839-259 x -850817-407 x -541429-2849 x -77347
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 220,361,603, 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 | 220,361,603 | |
| -1 | -220,361,603 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 220,361,603.
Example:
1 x 220,361,603 = 220,361,603
and
-1 x -220,361,603 = 220,361,603
Notice both answers equal 220,361,603
With that explanation out of the way, let's continue. Next, we take the number 220,361,603 and divide it by 2:
220,361,603 ÷ 2 = 110,180,801.5
If the quotient is a whole number, then 2 and 110,180,801.5 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 | 220,361,603 | |
| -1 | -220,361,603 |
Now, we try dividing 220,361,603 by 3:
220,361,603 ÷ 3 = 73,453,867.6667
If the quotient is a whole number, then 3 and 73,453,867.6667 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 | 220,361,603 | |
| -1 | -220,361,603 |
Let's try dividing by 4:
220,361,603 ÷ 4 = 55,090,400.75
If the quotient is a whole number, then 4 and 55,090,400.75 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 | 220,361,603 | |
| -1 | 220,361,603 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 37 | 77 | 259 | 407 | 2,849 | 77,347 | 541,429 | 850,817 | 2,861,839 | 5,955,719 | 20,032,873 | 31,480,229 | 220,361,603 |
| -1 | -7 | -11 | -37 | -77 | -259 | -407 | -2,849 | -77,347 | -541,429 | -850,817 | -2,861,839 | -5,955,719 | -20,032,873 | -31,480,229 | -220,361,603 |
Here are some more numbers to try:
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