Question

find HCF and LCM by prime factorization method first 12, 15, 21​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

12= 2 |_12_____

2 |_6________

3 |__3________

1

15= 3 |_15______

5 |_5______

|__1_______

21=

3 |_21______

7 |__7______

|__1_____

hcf and lcm = 3

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