Question

What is the lack of 40,60 and 75

Answer 1

$\huge\mathcal\purple{ANSWER :-}$

40 = 2×2×2×5 = 2³ × 5

60 = 2×2×3×5 = 2² × 3 × 5

75 = 5×5×3 = 5² × 3

HCF of ( 40, 60 & 75 ) = 5