Question

find the HCF of 20, 28and 36 using prime factorisation method​

Answer 1

Answer

20=2×2×5

28=2×2×7

36=2×2×3×3

So the common between them is,

2×2

=4

THE HCF IS 4

FOLLOW AND MARK AS BRAINLIEST...

Answer 2

Answer:

HCF of 20 , 28 , 36 is 4 = 2x2

Step-by-step explanation:

20 = 2x2x5

28 = 2x2x7

36 = 2x2x3x3

the underlined are common