Given a positive integer 'n', the task is to find a prime number greater than or equal to 'n'. the output should be y

Sure, I can help you with that. Here's a Python code snippet that finds the next prime number greater than or equal to a given integer 'n':

def is_prime(num):
    """
    Returns True if the given number is prime, False otherwise.
    """
    if num < 2:
        return False
    for i in range(2, int(num ** 0.5) + 1):
        if num % i == 0:
            return False
    return True

def next_prime(n):
    """
    Returns the next prime number greater than or equal to the given number.
    """
    num = n
    while True:
        if is_prime(num):
            return num
        num += 1

# Example usage
n = 10
print(next_prime(n)) # Output: 11

The `is_prime()` function checks if a given number is prime or not by iterating from 2 to the square root of the number and checking if it is divisible by any of the numbers in between.

The `next_prime()` function takes an integer `n` as input and starts iterating from `n` until it finds the next prime number using the `is_prime()` function. Once it finds a prime number, it returns it as output.

Hope this helps!