#### The number of distinct prime factors of the smallest 5-digit number is

(a) 2

(b) 4

(c) 6

(d) 8

**Solution:**

#### The sum of the prime factors of 1729 is

(a) 13

(b) 19

(c) 32

(d) 39

**Solution:**

#### Which of the following is a pair of co-prime numbers?

(a) 8, 45

(b) 3, 18

(c) 5, 35

(d) 6, 39

**Solution:**

**More Solutions:**