least common multiple for 84 ,135 , 60 ,160
B baby New member Joined Dec 3, 2009 Messages 1 Dec 3, 2009 #1 least common multiple for 84 ,135 , 60 ,160
W wjm11 Senior Member Joined Nov 13, 2004 Messages 1,417 Dec 4, 2009 #2 least common multiple for 84 ,135 , 60 ,160 Click to expand... You'll find a good explanation and examples here: http://www.purplemath.com/modules/lcm_gcf.htm
least common multiple for 84 ,135 , 60 ,160 Click to expand... You'll find a good explanation and examples here: http://www.purplemath.com/modules/lcm_gcf.htm
D Deleted member 4993 Guest Dec 6, 2009 #3 baby said: least common multiple for 84 ,135 , 60 ,160 Click to expand... One way to do this is "prime factorization": 84=22⋅3⋅7\displaystyle 84 = 2^2 \cdot 3 \cdot 784=22⋅3⋅7 135=33⋅5\displaystyle 135 = 3^3 \cdot 5135=33⋅5 60=22⋅3⋅5\displaystyle 60 = 2^2 \cdot 3 \cdot 560=22⋅3⋅5 160=25⋅5\displaystyle 160 = 2^5 \cdot 5160=25⋅5 So the least common multiple is (product of all the prime factors with highest exponent) LCM=25⋅33⋅5⋅7\displaystyle LCM = 2^5 \cdot 3^3 \cdot 5 \cdot 7LCM=25⋅33⋅5⋅7
baby said: least common multiple for 84 ,135 , 60 ,160 Click to expand... One way to do this is "prime factorization": 84=22⋅3⋅7\displaystyle 84 = 2^2 \cdot 3 \cdot 784=22⋅3⋅7 135=33⋅5\displaystyle 135 = 3^3 \cdot 5135=33⋅5 60=22⋅3⋅5\displaystyle 60 = 2^2 \cdot 3 \cdot 560=22⋅3⋅5 160=25⋅5\displaystyle 160 = 2^5 \cdot 5160=25⋅5 So the least common multiple is (product of all the prime factors with highest exponent) LCM=25⋅33⋅5⋅7\displaystyle LCM = 2^5 \cdot 3^3 \cdot 5 \cdot 7LCM=25⋅33⋅5⋅7
