Show that Z3 X Z5 is isomorphic to Z15 (where Zn is like the intergers mod n)(adsbygoogle = window.adsbygoogle || []).push({});

i m not sure if i m proving it right.. if i first right out Z3 x Z5 ={(1x1), (1X2),(1x3),(1x4), (1X5), (2X1),(2x2),(2x3), (2x4), (2X5), (3x1), (3x3),(3x3),(3x4), (3X5)}

Z15={1,2,3....15}

both of which have 15 elements... there for they are in the same form?? therefore isomorphic??

i would appreciate any help

thanks

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# Homework Help: Is this number isomorphic?

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