User Joachim Grieg - MathOverflow

Joachim Grieg

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Member for 9 years
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awarded

Scholar

Dec 5, 2015 at 5:48

accepted

Finite groups of order $n$ having exactly $n$ subgroups

Dec 5, 2015 at 5:42

comment

Finite groups of order $n$ having exactly $n$ subgroups

Thanks! By looking to oeis.org/A018216, I found yet another example: a group of order 28.

Dec 4, 2015 at 4:25

awarded

Student

Dec 4, 2015 at 3:59

comment

Finite groups of order $n$ having exactly $n$ subgroups

Yes! I found only few finite groups with this property: the trivial group, $\mathbb{Z}_2$, $S_3$, ... and so on.

Dec 4, 2015 at 3:46

asked

Finite groups of order $n$ having exactly $n$ subgroups

Dec 4, 2015 at 3:34

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