Numbers with Prime Number of Factors

1# Helper functions
2def is_prime(n):
3    if n < 2:
4        return False
5    for i in range(2, int(n ** 0.5) + 1):
6        if n % i == 0:
7            return False
8    return True
9
10def count_factors(n):
11    count = 0
12    for i in range(1, n + 1):
13        if n % i == 0:
14            count += 1
15    return count
16
17# Find numbers
18print("Numbers 1-100 with prime number of factors:")
19for num in range(1, 101):
20    factor_count = count_factors(num)
21    if is_prime(factor_count):
22        print(num, end=" ")
23print()