The sum of 1 and three consecutive odd numbers is 1 17. What are these three odd numbers?

1 17÷3 = 39 These three odd numbers are 37, 39 and 4 1 respectively.

2. Find the least common multiple by decomposing prime factors.

a=2*3*3*5 b=2*2*5*7

Then the least common multiple of A and B is 2×2×3×3×5×7 = 1260.