LCM and HCF Practice Test 4

L.C.M. of 6, 9 and 12 ∴ LCM = 3 × 2 × 3 × 2 = 36.
∵ Largest 3-digit number = 999 ∴ Largest 3-digit number which is exactly divisible by 6, 9 and 12 = 999 – 27 = 972
∴ The required number = 972 + 1 = 973