In the code for summing the first 100 prime numbers, what is the primary purpose of the is_Prime method?

• A. To sum the prime numbers
• B. To determine if a number is prime
• C. To generate prime numbers
• D. To print the prime numbers

Answer: (B)

The primary purpose of the is_Prime method is to determine if a number is prime. A prime number is defined as a number greater than one that has no positive divisors other than 1 and itself. The is_Prime method implements the logic to check for these conditions by evaluating potential factors of a given number.

When this method is called, it typically takes a number as an input, checks it against these factors, and returns a boolean value indicating whether the number is prime (true) or not (false). This functionality is crucial for the overall process of summing the first 100 prime numbers, as it allows the program to identify which numbers to include in the summation.

The other options involve actions that might be relevant in the context of the broader task of summing prime numbers but do not directly align with the purpose of the is_Prime method itself. Summing prime numbers or generating or printing them would be dependent on the output produced by the is_Prime method, rather than being the method's core functionality.