Find The LCM of 15, 30, & 45 by Prime Factorisation || LCM kaise nikale || Least common multiple

Find The LCM of 15, 30, & 45 by Prime Factorisation || LCM kaise nikale || Least common multiple LCM least common multiple HCF PRIME FACTORS PRIME FACTORISATION MATHS CBSE NCERT CLASS 5 MATHS Class 6 maths