Mod n Groups

Under Mod n Groups, select Zn or Un.

• Zn is addition mod n on the set of integers from 0 to n-1.
  
  
• Un is multiplication mod n on the set of integers
  from 0 to n-1 that are relatively prime to n.

If you select Zn, the box on the right displays with Z selected. Enter the number of elements. Your computer may not be able to handle over 61 elements.

If you select Un, the same box displays with U selected.

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