A:
Positive:
1 x 2011031055 x 402206217 x 2872901535 x 574580349 x 4104145193 x 1041985245 x 820829965 x 2083971351 x 1488554253 x 472856755 x 297719457 x 21265
Negative:
-1 x -201103105-5 x -40220621-7 x -28729015-35 x -5745803-49 x -4104145-193 x -1041985-245 x -820829-965 x -208397-1351 x -148855-4253 x -47285-6755 x -29771-9457 x -21265
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 201,103,105, 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 | 201,103,105 | |
| -1 | -201,103,105 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 201,103,105.
Example:
1 x 201,103,105 = 201,103,105
and
-1 x -201,103,105 = 201,103,105
Notice both answers equal 201,103,105
With that explanation out of the way, let's continue. Next, we take the number 201,103,105 and divide it by 2:
201,103,105 ÷ 2 = 100,551,552.5
If the quotient is a whole number, then 2 and 100,551,552.5 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 | 201,103,105 | |
| -1 | -201,103,105 |
Now, we try dividing 201,103,105 by 3:
201,103,105 ÷ 3 = 67,034,368.3333
If the quotient is a whole number, then 3 and 67,034,368.3333 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 | 201,103,105 | |
| -1 | -201,103,105 |
Let's try dividing by 4:
201,103,105 ÷ 4 = 50,275,776.25
If the quotient is a whole number, then 4 and 50,275,776.25 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 | 201,103,105 | |
| -1 | 201,103,105 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 49 | 193 | 245 | 965 | 1,351 | 4,253 | 6,755 | 9,457 | 21,265 | 29,771 | 47,285 | 148,855 | 208,397 | 820,829 | 1,041,985 | 4,104,145 | 5,745,803 | 28,729,015 | 40,220,621 | 201,103,105 |
| -1 | -5 | -7 | -35 | -49 | -193 | -245 | -965 | -1,351 | -4,253 | -6,755 | -9,457 | -21,265 | -29,771 | -47,285 | -148,855 | -208,397 | -820,829 | -1,041,985 | -4,104,145 | -5,745,803 | -28,729,015 | -40,220,621 | -201,103,105 |
Here are some more numbers to try:
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