33 is ______ number.
even and prime
odd and composite
even and composite
odd and prime
Since 33 is not a multiple of 2, hence it is odd. Also, 33 is a composite number because it has more than two factors (1, 3, 11, 33).
State true (T) of false (F):
(i) The sum of primes cannot be a prime.
(ii) The product of primes cannot be a prime.
(iii) An even number is composite.
(iv) Two consecutive numbers cannot be both primes.
(v) Odd numbers cannot be composite.
(vi) Odd numbers cannot be written as sum of primes.
(vii) A number and its successor are always co-primes.
What is the product of the smallest two-digit composite odd number and the biggest even prime number?