Mathematics (Syllabus D) · Oct / Nov 2025 · Paper 21 · Question 15
4024
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x y 2 3 7 2 3 7 n n n 2 1 4 # # # # = = + n is a positive integer greater than 2. Find the highest common factor (HCF) of x and y. Write your answer as the product of prime factors in terms of n. [2]
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