1 2 3 4 6 12, Factors of 12, 1 2 4 5 10 20, Factors of 20, 1 2 5 10 25 50, Factors of 50, 7, Prime number between 5 and 9, 1, Prime number less than 3, 13, Prime number between 11 and 15, 4, HCF of 12 and 20, 10, HCF of 20 and 50, 5 10 15 20 25, First 5 multiples of 5, 7 14 21 28 35, First 5 multiples of 7, 6 12 18 24 30, First 5 multiples of 6, 35, LCM of 5 and 7, 42, LCM of 7 and 6, 12 24 36 48 60, First 5 multiple of 12, 24, LCM of 12 and 6, 60, HCF of 12 and 10

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