Question : If K1 and K2 are two distinct prime numbers, then what is the product of the highest common factor and the least common multiple of K1 and K2?

Option 1: $1$

Option 2: $\frac{K1}{K2}$

Option 3: $K1 + K2$

Option 4: $K1 × K2$

Question : If A, B and C are three distinct prime numbers, then what is the highest common factor of A, B and C?

Option 1: 7

Option 2: 0

Option 3: 5

Option 4: 1

Question : If A1 and A2 are two distinct prime numbers, then what is the highest common factor of A1 and A2?

Option 1: 3

Option 2: 1

Option 3: 5

Option 4: 2

Question : $P_1$ and $P_2$ can do a piece of work together in 14 days, $P_2$ and $P_3$ can do the same work together in 21 days, while $P_3$ and $P_1$ can do it together in 42 days. How much work can all the 3 together do in 12 days?

Option 1: $\frac{5}{6}$

Option 2: $\frac{5}{7}$

Option 3: $\frac{6}{7}$

Option 4: $\frac{3}{7}$

Question : The product of two co-prime numbers is 483. Find the Least Common Multiple of both numbers.

Option 1: 483

Option 2: 21

Option 3: 1

Option 4: 23