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Least common multiple

+1 vote
what is the LCM is of 12,30
asked Feb 23, 2013 in PRE-ALGEBRA by andrew Scholar

1 Answer

+1 vote

     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.

answered Feb 23, 2013 by ferguson Rookie
edited Feb 23, 2013 by moderator

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