A:
Positive:
1 x 20143140123 x 875788741 x 4912961227 x 887363941 x 214061943 x 2136075221 x 385819307 x 21643
Negative:
-1 x -201431401-23 x -8757887-41 x -4912961-227 x -887363-941 x -214061-943 x -213607-5221 x -38581-9307 x -21643
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 201,431,401, 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 | 201,431,401 | |
| -1 | -201,431,401 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 201,431,401.
Example:
1 x 201,431,401 = 201,431,401
and
-1 x -201,431,401 = 201,431,401
Notice both answers equal 201,431,401
With that explanation out of the way, let's continue. Next, we take the number 201,431,401 and divide it by 2:
201,431,401 ÷ 2 = 100,715,700.5
If the quotient is a whole number, then 2 and 100,715,700.5 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 | 201,431,401 | |
| -1 | -201,431,401 |
Now, we try dividing 201,431,401 by 3:
201,431,401 ÷ 3 = 67,143,800.3333
If the quotient is a whole number, then 3 and 67,143,800.3333 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 | 201,431,401 | |
| -1 | -201,431,401 |
Let's try dividing by 4:
201,431,401 ÷ 4 = 50,357,850.25
If the quotient is a whole number, then 4 and 50,357,850.25 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 | 201,431,401 | |
| -1 | 201,431,401 |
If you did it right, you will end up with this table:
| 1 | 23 | 41 | 227 | 941 | 943 | 5,221 | 9,307 | 21,643 | 38,581 | 213,607 | 214,061 | 887,363 | 4,912,961 | 8,757,887 | 201,431,401 |
| -1 | -23 | -41 | -227 | -941 | -943 | -5,221 | -9,307 | -21,643 | -38,581 | -213,607 | -214,061 | -887,363 | -4,912,961 | -8,757,887 | -201,431,401 |
Here are some more numbers to try:
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