1.

Find the HCF of 135 and 75 by the prime factorisation, hrime factorisation, hence find the LCMand HCF of ( 135,75 ) and 20.​

Answer»

Answer:

135=3×3×3×5

75=3×5×5

Hcf=3×5=15

lcm=3×3×3×5×5=675

and with 20

135=3×3×3×5

75=3×5×5

20=2×2×5

Hcf=5

lcm=2×2×3×3×3×5=2700



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