Question

Find the smallest number which is exactly divisible by 20, 32 and 36​

Answer 1

Answer:

take out HCF of 20,32,and 36

20=2×2×5

32=2×2×2×2×2

36=2×2×3×3

now,take common between the three

i.e.2×2

therefore,HCF=2×2

=4