Question

LCM of 6, 10 and 15 is

• A. 30
• B. 60
• C. 20
• D. 900

Answer 1

The correct option is A 30

Let's find the LCM of given numbers using prime factorization method:
Hence, the common prime factors are 2, 3, and 5 and their product gives the LCM of 6, 10 and 15
$\therefore$ 2 × 3 × 5 = 30.