Answer:
30
Explanation:
30 is divisible by 90, 120 and 150
Prime factors of 90 = 2 x 3^2 x 5
Prime factors of 120 = 2^3 x 3 x 5
Prime factors of 150 = 2 x 3 x 5^2
Common prime factors with lowest exponent: 2, 3, 5
HCF(highest common factor) = 2 x 3 x 5 = 30
4.3m questions
5.6m answers