Question

find the lcm of 30 and 60 and 85 by prime factorization method​

Answer 1

As per the given question to find the LCM  it means the lowest common multiple so we find it by prime factorization method

2 ⇔85, 30, 60

3 ⇔85, 15, 30

5 ⇔85, 5, 10

       ⇔17, 1, 2

so by multiplying the  values we get the LCM

∴ So the LCM of the given numbers is

2 x 3 x 5 x 17 x 1 x 2 = 1020

so the LCM is =1020