I cannot remember how to do these problems and they are due right after break!!!
Compute 3 ^80 (mod7) and find all integers x such that 5x is congruent to 1 (mod 100)
Follow Math Help Forum on Facebook and Google+
#1: Note that:
Multiply both sides by the appropriate power of 3 and you'll get your result.
#2: If , then has no solutions.
View Tag Cloud