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GATE 2020 CS – Question 28

Engineering Mathematics · Discrete Mathematics: Monoids and Groups · 1 mark · Numerical answer

Let $G$ be a group of 35 elements. Then the largest possible size of a subgroup of $G$ other than $G$ itself is ______.

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Correct answer: 7 to 7

Explanation

By Lagrange's theorem subgroup orders divide 35: 1, 5, 7, 35. The largest proper one is 7.