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Math Help - Generator of group

  1. #1
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    Generator of group

    Let p and q be prime numbers. How many generators of the cyclic Group Z_{pq}
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  2. #2
    MHF Contributor Swlabr's Avatar
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    Quote Originally Posted by GTK X Hunter View Post
    Let p and q be prime numbers. How many generators of the cyclic Group Z_{pq}
    Let a,b \in G such that o(a)=p, o(b)=q. What is o(ab)?
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  3. #3
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    Quote Originally Posted by Swlabr View Post
    Let a,b \in G such that o(a)=p, o(b)=q. What is o(ab)?
    lcm(p,q) right?
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