Question

find the h.c.f of 20,28 by listing factors.​

Answer 1

Step-by-step explanation:

Factors of 20 = F(20) = { 1,2,4,5,10,20 }

28 = 1 × 28.

= 2 × 14.

= 4 × 7.

Factors of 28 = F(28) = { 1, 2 , 4, 7, 14, 28 }

Common factors of 20 and 28 = { 1, 2, 4 }