2011 N1 = 2024 A2

I am always harping on my students to write solutions well rather than aiming for just mathematically correct, and now I have a pair of problems to illustrate why. Shortlist 2011 N1 Here is Shortlist 2011 N1 , proposed by Suhaimi Ramly: For any integer d > 0 d > 0 d > 0 , let f ( d ) f(d) f ( d ) be the smallest positive integer that has exactly d d d positive divisors (for example, f ( 1 ) = 1…