JEE Main 2024 Mathematics question

The function f : N – {1} → N; defined by f(n) = the highest prime factor of n, is:

Answer: (B)

Solution

The largest prime factors of two different natural numbers can be the same, e.g. f(6) = 3 = f(12) and f(10) = 5 = f(15),

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Question ID VK-016715