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 function to check if an integer is a prime number.
user
def is_prime(n):
    if n <= 1:
        return false
    for i in range(2, n):
        if n % i == 0:
            return false
    return true
assistant