It's not. 120 is.
240
lcm(16, 20, 15) = 240. 16 = 2^4 20 = 2^2 x 5 15 = 3 x 5 lcm = 2^4 x 3 x 5 = 240
240
3 and 60, respectively.
Because 3 isn't a multiple of 12 or 15. The LCM is 60.
The Least Common Multiple (LCM) of 12, 15, and 3 is 60.
The LCM is: 120
The Least Common Multiple (LCM) for 15 3 16 is 240.
The least common multiple (LCM) of 3, 5, and 16 is 240.
60
60
The LCM of 3 and 6 is 6 The LCM of 5 and 7 is 35. The LCM of 8 and 9 is 72. The LCM of 12 and 15 is 60.