PYTHON

isprime function in python

def isPrime(n):
    if n > 1:  
        for i in range(2,n):  
            if (n % i) == 0:  
                return False
        return True
    else:
        return False

isprime in python

def isPrime(n):
    if n==2:
        return True
    if n%2==0:
        return False
    for i in range(3,int(n**0.5)+1):
        if n%i==0:
            return False
    return True

isprime python

# math.isqrt() for Python version 3.8 
def isPrime(n):
    if n < 2: return False
    for i in range(2, isqrt(n) + 1):
        if n % 2 == 0:
            return False
    return True