SOLUTION: list out all the subgroups of Z_30

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Question 311495: list out all the subgroups of Z_30
Answer by mina_poli7@yahoo.com(1) About Me  (Show Source):
You can put this solution on YOUR website!
z_30={0,1,2,...,29}
by lagrange theorem o(G)/O(H)
O(G)=30
O(H)=1,2,3,5,6,10,15,30
<1>={0}
<2>={0,2}
<3>={0,3,6}