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Prime factorization method to find the least common multiple (LCM) of 3, 9, and 12.

A step-by-step prime factorization diagram showing the calculation of LCM/LCD for numbers 3, 9, and 12, resulting in 36.

A step-by-step prime factorization diagram showing the calculation of LCM/LCD for numbers 3, 9, and 12, resulting in 36.

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