A rectangular block 6 cm × 12 cm × 15 cm is cut into exact number of equal cubes. The least possible number of cubes will be
(a) 6
(b) 11
(c) 33
(d) 40
A rectangular block 6 cm × 12 cm × 15 cm is cut into exact number of equal cubes. The least possible number of cubes will be
(a) 6
(b) 11
(c) 33
(d) 40