Show that if m is a number having primitive roots then the product of the positive intgeters less than or equal to m and relatively prime to it is congruent to -1 (mod m)
Show that if m is a number having primitive roots then the product of the positive intgeters less than or equal to m and relatively prime to it is congruent to -1 (mod m)
What does it mean that "a number has primitive roots"??
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primitive roots proof 
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