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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def is_prime(number):
 """ Testing given number to be a prime. [2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97] """

    if number < 2:
        return False
    if number % 2 == 0:
        return number == 2

    limit = int(math.sqrt(number))
    for divisor in range(3, limit + 1, 2):
        if number % divisor == 0:
            return False

    return True