Least common multiple

Question

what is the LCM is of 12,30

Answer 1

     12,30 L.c.m is

      write the prime factorization of each number

     12=2*2*3 =2²*3¹

     30=2*3*5=  2¹*3¹*5¹

  multiply highest power of  each factor in the either number

L.C.M=2²*3¹*5¹     

            =4*3*5

        =12*5=60

L.C.M of 12 and 30 is 60.