Groups and FieldsMediumCosets and Lagrange's Theorem ShareCosets and Lagrange's Theorem · Medium problemA group GGG has order 727272. It has subgroups H≤K≤GH \le K \le GH≤K≤G with [G:K]=4[G:K]=4[G:K]=4 and [K:H]=3[K:H]=3[K:H]=3. What is ∣H∣|H|∣H∣?Check Show answer Walk through it step by step Practice more like this Review this concept