Question

4)Find HCF and LCM of 90,144 by euclids division lemma and prime factorization method?

Answer 1

Step-by-step explanation:

HCF and LCM of 90,144 by euclids division lemma and prime factorization method

144=90×1+54

90=54×1+36

54=36×1+28

36=28×1+8

28=8×3+4

8=4×2+0

SO HCF =4

LCM =144×90÷4=36×90=3240

Answer 2

90 = 3 x 3 x 2 x 5.

144 = 2 x 2 x 2 x 2 x 3 x 3

H.C.F( 90, 144) = 2 x 3 x 3 = 18.

L.C.M( 90, 144) = 2 x 2 x 2 x 2 x 3 x 3 x 5 = 720.