Question

Find the lcm and hcf of 15&18 by prime factorizaton method

Answer 1

Step-by-step explanation:

15=3×5

18=3×2×2

LCM OF 15 AND 18=3×2×2×5=90

15=3×5

18=2×3×3

HCF OF 15 AND 18=3 is common in 15 and 18.

so HCF is 3.