as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
write a python function to determine if a number is a prime.
user
def is_prime(n):
    if n <= 1:
        return false
    else:
        for i in range(2,n):
            if n % i == 0:
                return false
        return true
assistant