A:
Positive:
1 x 2012203277 x 2874576111 x 1829275777 x 26132511451 x 1386771801 x 11172710157 x 1981112607 x 15961
Negative:
-1 x -201220327-7 x -28745761-11 x -18292757-77 x -2613251-1451 x -138677-1801 x -111727-10157 x -19811-12607 x -15961
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 201,220,327, 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 | 201,220,327 | |
| -1 | -201,220,327 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 201,220,327.
Example:
1 x 201,220,327 = 201,220,327
and
-1 x -201,220,327 = 201,220,327
Notice both answers equal 201,220,327
With that explanation out of the way, let's continue. Next, we take the number 201,220,327 and divide it by 2:
201,220,327 ÷ 2 = 100,610,163.5
If the quotient is a whole number, then 2 and 100,610,163.5 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 | 201,220,327 | |
| -1 | -201,220,327 |
Now, we try dividing 201,220,327 by 3:
201,220,327 ÷ 3 = 67,073,442.3333
If the quotient is a whole number, then 3 and 67,073,442.3333 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 | 201,220,327 | |
| -1 | -201,220,327 |
Let's try dividing by 4:
201,220,327 ÷ 4 = 50,305,081.75
If the quotient is a whole number, then 4 and 50,305,081.75 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 | 201,220,327 | |
| -1 | 201,220,327 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 1,451 | 1,801 | 10,157 | 12,607 | 15,961 | 19,811 | 111,727 | 138,677 | 2,613,251 | 18,292,757 | 28,745,761 | 201,220,327 |
| -1 | -7 | -11 | -77 | -1,451 | -1,801 | -10,157 | -12,607 | -15,961 | -19,811 | -111,727 | -138,677 | -2,613,251 | -18,292,757 | -28,745,761 | -201,220,327 |
Here are some more numbers to try:
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