Question

Using the common division method, the LCM of 28, 35 and 49 is:

Options

• 245

• 980

• 1372

• 490

Answer 1

980

Explanation:

Using the division method:

28, 35, 49 ÷ 7 → 4, 5, 7 (now coprime). 

LCM = 7 × 4 × 5 × 7 = 980.