Select all the prime numbers from the list below: 21, 29, 31, 35.
Note
29 and 31 are prime because they have no positive divisors other than 1 and themselves; 21 and 35 are composite (21 = 3×7, 35 = 5×7).
Select all the prime numbers from the list below: 21, 29, 31, 35.
29 and 31 are prime because they have no positive divisors other than 1 and themselves; 21 and 35 are composite (21 = 3×7, 35 = 5×7).