Number A=2*2*3*5*A, Number B=2*3*7*A, (A, B, and A are all natural numbers greater than 1. What is the least common multiple of A and B?
甲数=2*2*3*5*A，乙数=2*3*7*A，(甲、乙、A都是大于1的自然数．甲乙两数的最小公倍数是多少A
<result>420</result>