Question

If
a and b are two prime numbers then find
lcm.(a,b)​

Answer 1

The answer is a×b (or) ab..

as we know L.C.M is lowest common multiple..

let's take two prime numbers say 3 and 5

multiples of 3 are 3,6,9... while that of 5 are 5,10,15...

so as they don't have any common factor their lcm is their product..

Note; this property is very useful while solving fractions...