Question

lcm of 1440,1800,1920​

Answer 1

Answer:

HCF is the highest common factor

So by prime factorisation method

1440= 2^5 x 3^2 × 5

1800= 2^3 × 5^3

1920= 2^7 × 3 × 5

HCF = (2^3 x 5) = 40

If you have problem in prime factorisation method you can do with division method