Question

HCF of 196 and 38220​

Answer 1

196=2×2×7×7

38220=2×2×5×3×7×91

HCF=2×7=14

Answer 2

FACTORS of 196= 98×2=49×2×2=7×7×2×2=7 square ×2 square
FACTORS of 38220=19110×2=9555×2×2=1911×5×2×2=637×3×5×2×2=91×7×3×5×2×2=13×7×7×3×5×2×2=
therefore HCF OF 196 AND 38220=7×7×2×2=49×4=196...