4. Definition: Let M be a modulus greater than or equal to 2, and A an integer. If A" = 1(mod M) for some n > 0, then the least n > 0 for which A" = 1(mod M) is called the order of A modulo M. a....

0, then the least n > 0 for which A" = 1(mod M) is called the order of A modulo M. a. Compute the order of 4, 6, and 9 mod 13. b. Use your answer from part a to compute 6854 (mod 13) "/>
Extracted text: 4. Definition: Let M be a modulus greater than or equal to 2, and A an integer. If A" = 1(mod M) for some n > 0, then the least n > 0 for which A" = 1(mod M) is called the order of A modulo M. a. Compute the order of 4, 6, and 9 mod 13. b. Use your answer from part a to compute 6854 (mod 13)