A:
Positive:
1 x 2204030455 x 4408060917 x 1296488529 x 760010585 x 2592977145 x 1520021493 x 4470652465 x 89413
Negative:
-1 x -220403045-5 x -44080609-17 x -12964885-29 x -7600105-85 x -2592977-145 x -1520021-493 x -447065-2465 x -89413
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 220,403,045, 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 | 220,403,045 | |
| -1 | -220,403,045 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 220,403,045.
Example:
1 x 220,403,045 = 220,403,045
and
-1 x -220,403,045 = 220,403,045
Notice both answers equal 220,403,045
With that explanation out of the way, let's continue. Next, we take the number 220,403,045 and divide it by 2:
220,403,045 ÷ 2 = 110,201,522.5
If the quotient is a whole number, then 2 and 110,201,522.5 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 | 220,403,045 | |
| -1 | -220,403,045 |
Now, we try dividing 220,403,045 by 3:
220,403,045 ÷ 3 = 73,467,681.6667
If the quotient is a whole number, then 3 and 73,467,681.6667 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 | 220,403,045 | |
| -1 | -220,403,045 |
Let's try dividing by 4:
220,403,045 ÷ 4 = 55,100,761.25
If the quotient is a whole number, then 4 and 55,100,761.25 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 | 220,403,045 | |
| -1 | 220,403,045 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 29 | 85 | 145 | 493 | 2,465 | 89,413 | 447,065 | 1,520,021 | 2,592,977 | 7,600,105 | 12,964,885 | 44,080,609 | 220,403,045 |
| -1 | -5 | -17 | -29 | -85 | -145 | -493 | -2,465 | -89,413 | -447,065 | -1,520,021 | -2,592,977 | -7,600,105 | -12,964,885 | -44,080,609 | -220,403,045 |
Here are some more numbers to try:
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