Question

The product of two numbers is210 and their hcf is1 .what is their lcm?

Answer 1

Product of two numbers = H.C.F ×L.C.M

= 210 = 1 × L.C.M

so now,

= 210÷1 = L.C.M
= 210 = L.C.M
OR L.C.M = 210

Hope this will be helpful