Calculate the least common multiple (LCM) of 18, 30, and 45.
Note
Use prime factorization: 18 = 2 × 3^2, 30 = 2 × 3 × 5, 45 = 3^2 × 5; take the highest powers 2 × 3^2 × 5 = 90, the LCM.
Calculate the least common multiple (LCM) of 18, 30, and 45.
Use prime factorization: 18 = 2 × 3^2, 30 = 2 × 3 × 5, 45 = 3^2 × 5; take the highest powers 2 × 3^2 × 5 = 90, the LCM.