Question

Use the prime factor trees to find the lowest common multiple of 66 and 195

Answer 1

66 = 2 × 3 × 11

195 = 3 × 5 × 13

LCM of 66 and 195 = 2 × 3 × 5 × 11 × 13

= 4,290

Answer 2

429

Explanation:

66 = 11 * 3 * 2

195 = 13 * 3 * 5

common = 3 (only multiply once)

therefore,

2*3*5*11*13 = 4290