Numbers with Prime Digit Sum

1# Helper function
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
10# Find numbers
11print("Numbers 1-100 with prime digit sum:")
12for num in range(1, 101):
13    digit_sum = sum(int(d) for d in str(num))
14    if is_prime(digit_sum):
15        print(num, end=" ")
16print()