A:
Positive:
1 x 22020251317 x 1295308941 x 537079397 x 2270129697 x 3159291649 x 1335373257 x 676093977 x 55369
Negative:
-1 x -220202513-17 x -12953089-41 x -5370793-97 x -2270129-697 x -315929-1649 x -133537-3257 x -67609-3977 x -55369
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 220,202,513, 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 | 220,202,513 | |
| -1 | -220,202,513 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 220,202,513.
Example:
1 x 220,202,513 = 220,202,513
and
-1 x -220,202,513 = 220,202,513
Notice both answers equal 220,202,513
With that explanation out of the way, let's continue. Next, we take the number 220,202,513 and divide it by 2:
220,202,513 ÷ 2 = 110,101,256.5
If the quotient is a whole number, then 2 and 110,101,256.5 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 | 220,202,513 | |
| -1 | -220,202,513 |
Now, we try dividing 220,202,513 by 3:
220,202,513 ÷ 3 = 73,400,837.6667
If the quotient is a whole number, then 3 and 73,400,837.6667 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 | 220,202,513 | |
| -1 | -220,202,513 |
Let's try dividing by 4:
220,202,513 ÷ 4 = 55,050,628.25
If the quotient is a whole number, then 4 and 55,050,628.25 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 | 220,202,513 | |
| -1 | 220,202,513 |
If you did it right, you will end up with this table:
| 1 | 17 | 41 | 97 | 697 | 1,649 | 3,257 | 3,977 | 55,369 | 67,609 | 133,537 | 315,929 | 2,270,129 | 5,370,793 | 12,953,089 | 220,202,513 |
| -1 | -17 | -41 | -97 | -697 | -1,649 | -3,257 | -3,977 | -55,369 | -67,609 | -133,537 | -315,929 | -2,270,129 | -5,370,793 | -12,953,089 | -220,202,513 |
Here are some more numbers to try:
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