Fill in the blanks.
(i) 1 is neither ...... nor ....... .
(ii) The smallest prime number is ...... .
(iii) The smallest composite number is ...... .
(iv) The HCF of two consecutive odd numbers is ....... .
(v) Two perfect numbers are ...... and ...... .

Fill in the blanks in the following:
(i) A number having only two factors is called a ____
(ii) A number having more than two factors is called a____
(iii) $1$ is neither ____ nor___
(iv) The smallest prime number is____
(v) The smallest composite number is ____

Fill in the blanks:

(a) A number which has only two factors is called a _______.

(b) A number which has more than two factors is called a _______.

(c) 1 is neither _______ nor _______.

(d) The smallest prime number is _______.

(e) The smallest composite number is _______.

(f) The smallest even number is _______.

State true (T) of false (F):

$\left(i\right)$ The sum of primes cannot be a prime.

$\left(ii\right)$ The product of primes cannot be a prime.

$\left(iii\right)$ An even number is composite.

$\left(iv\right)$ Two consecutive numbers cannot be both primes.

$\left(v\right)$ Odd numbers cannot be composite.

$\left(vi\right)$ Odd numbers cannot be written as sum of primes.

$\left(vii\right)$ A number and its successor are always co-primes.