A:
Positive:
1 x 2020420255 x 4040840517 x 1188482525 x 808168185 x 2376965425 x 475393431 x 4687751103 x 1831752155 x 937555515 x 366357327 x 2757510775 x 18751
Negative:
-1 x -202042025-5 x -40408405-17 x -11884825-25 x -8081681-85 x -2376965-425 x -475393-431 x -468775-1103 x -183175-2155 x -93755-5515 x -36635-7327 x -27575-10775 x -18751
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 202,042,025, 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 | 202,042,025 | |
| -1 | -202,042,025 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 202,042,025.
Example:
1 x 202,042,025 = 202,042,025
and
-1 x -202,042,025 = 202,042,025
Notice both answers equal 202,042,025
With that explanation out of the way, let's continue. Next, we take the number 202,042,025 and divide it by 2:
202,042,025 ÷ 2 = 101,021,012.5
If the quotient is a whole number, then 2 and 101,021,012.5 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 | 202,042,025 | |
| -1 | -202,042,025 |
Now, we try dividing 202,042,025 by 3:
202,042,025 ÷ 3 = 67,347,341.6667
If the quotient is a whole number, then 3 and 67,347,341.6667 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 | 202,042,025 | |
| -1 | -202,042,025 |
Let's try dividing by 4:
202,042,025 ÷ 4 = 50,510,506.25
If the quotient is a whole number, then 4 and 50,510,506.25 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 | 202,042,025 | |
| -1 | 202,042,025 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 25 | 85 | 425 | 431 | 1,103 | 2,155 | 5,515 | 7,327 | 10,775 | 18,751 | 27,575 | 36,635 | 93,755 | 183,175 | 468,775 | 475,393 | 2,376,965 | 8,081,681 | 11,884,825 | 40,408,405 | 202,042,025 |
| -1 | -5 | -17 | -25 | -85 | -425 | -431 | -1,103 | -2,155 | -5,515 | -7,327 | -10,775 | -18,751 | -27,575 | -36,635 | -93,755 | -183,175 | -468,775 | -475,393 | -2,376,965 | -8,081,681 | -11,884,825 | -40,408,405 | -202,042,025 |
Here are some more numbers to try:
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