Math, asked by dtnikam123, 10 months ago

find the LCM and HCF of 12,15,and 21

Answers

Answered by aastha8077

3

Step-by-step explanation:

LCM should be 420. plzzzzz mark it brainlist

Answered by ishwarsinghdhaliwal

8

Applying the prime factorisation method

12=2×2×3

15=3×5

21=3×7

LCM of 12,15,and 21 =2×2×3×5×7 =420

HCF of 12,15,and 21 =3

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