#### Fill in the blanks:

(i) The only natural number which has exactly one factor is ……….

(ii) The only prime number which is even is ……….

(iii) The HCF of two co-prime numbers is ……….

(iv) Two perfect numbers are ………. and ……….

(v) The only prime-triplet is ……….

**Solution:**

#### State whether the following statements are true (T) or false (F):

(i) Every natural number has a finite number of factors.

(ii) Every natural number has an infinite number of its multiples.

(iii) There are infinitely many prime numbers.

(iv) If two numbers are separately divisible by a number, then their difference is also divisible by that number.

(v) LCM of two prime numbers equals their product.

(vi) LCM of two co-prime numbers equals their product.

**Solution:**

**More Solutions:**

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