Least common multiple of 16 and 72

Least common multiple of 16 and 72


two



The greatest common divisor of 18 and 27 is______ The least common multiple is______ .


18 = 2 × 3 × 3, 27 = 3 × 3 × 3, so the greatest common factor of 18 and 24 is 3 × 3 = 9; the least common multiple of 18 and 24 is 3 × 3 × 2 × 3 = 54



Who knows the least common multiple of 42.56.72.90.110?


42=2*3*7
56=2*2*2*7
72=2*2*2*3*3
90=3*3*2*5
110=2*5*11
So the least common multiple = 2 * 2 * 2 * 3 * 3 * 5 * 7 * 11 = 27720