Choose all the prime numbers from the list: 57, 61, 77, 89.
Note
61 and 89 are prime because they have no divisors other than 1 and themselves; 57 = 3×19 and 77 = 7×11 are composite.
Choose all the prime numbers from the list: 57, 61, 77, 89.
61 and 89 are prime because they have no divisors other than 1 and themselves; 57 = 3×19 and 77 = 7×11 are composite.