A:
Positive:
1 x 202284555 x 404569113 x 155603537 x 54671565 x 311207169 x 119695185 x 109343481 x 42055647 x 31265845 x 239392405 x 84113235 x 6253
Negative:
-1 x -20228455-5 x -4045691-13 x -1556035-37 x -546715-65 x -311207-169 x -119695-185 x -109343-481 x -42055-647 x -31265-845 x -23939-2405 x -8411-3235 x -6253
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 20,228,455, 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 | 20,228,455 | |
| -1 | -20,228,455 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 20,228,455.
Example:
1 x 20,228,455 = 20,228,455
and
-1 x -20,228,455 = 20,228,455
Notice both answers equal 20,228,455
With that explanation out of the way, let's continue. Next, we take the number 20,228,455 and divide it by 2:
20,228,455 ÷ 2 = 10,114,227.5
If the quotient is a whole number, then 2 and 10,114,227.5 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 | 20,228,455 | |
| -1 | -20,228,455 |
Now, we try dividing 20,228,455 by 3:
20,228,455 ÷ 3 = 6,742,818.3333
If the quotient is a whole number, then 3 and 6,742,818.3333 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 | 20,228,455 | |
| -1 | -20,228,455 |
Let's try dividing by 4:
20,228,455 ÷ 4 = 5,057,113.75
If the quotient is a whole number, then 4 and 5,057,113.75 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 | 20,228,455 | |
| -1 | 20,228,455 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 37 | 65 | 169 | 185 | 481 | 647 | 845 | 2,405 | 3,235 | 6,253 | 8,411 | 23,939 | 31,265 | 42,055 | 109,343 | 119,695 | 311,207 | 546,715 | 1,556,035 | 4,045,691 | 20,228,455 |
| -1 | -5 | -13 | -37 | -65 | -169 | -185 | -481 | -647 | -845 | -2,405 | -3,235 | -6,253 | -8,411 | -23,939 | -31,265 | -42,055 | -109,343 | -119,695 | -311,207 | -546,715 | -1,556,035 | -4,045,691 | -20,228,455 |
Here are some more numbers to try:
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