Select all prime numbers from the list: 53, 57, 59, 61, 67, 69, 71, 73.
Note
Primes in this list are 53, 59, 61, 67, 71 and 73; 57, 69 are composite (57=3×19, 69=3×23).
Select all prime numbers from the list: 53, 57, 59, 61, 67, 69, 71, 73.
Primes in this list are 53, 59, 61, 67, 71 and 73; 57, 69 are composite (57=3×19, 69=3×23).