Choose all the prime numbers from the list: 11, 15, 17, 21.
Note
A prime number has exactly two distinct positive divisors (1 and itself); 11 and 17 meet this condition, while 15 and 21 are divisible by smaller numbers.
Choose all the prime numbers from the list: 11, 15, 17, 21.
A prime number has exactly two distinct positive divisors (1 and itself); 11 and 17 meet this condition, while 15 and 21 are divisible by smaller numbers.