ranksbree9xkenzig4 ranksbree9xkenzig4
  • 11-11-2016
  • Mathematics
contestada

How do I determine 8^402 mod 5?

Respuesta :

pkmnmushy
pkmnmushy pkmnmushy
  • 15-11-2016
It would be a great idea to narrowing it down to (2^3)^134 mod 5. now it is easier cause   8 = 3 (mod 5), let's compute 3^402 (mod 5). 
3^4 = 81 = 1 (mod 5). 
Therefore, 3^402 = (3^4)^100 * 2^2 = 1^100 * 4 = 4 (mod 5). 
Answer Link

Otras preguntas

In addition to filling lakes with sediment, why is eutrophication a biological concern?
Why was it important to be ethical, creative, and observant when designing the bridge model?
When montague offers to raise juliets statue in pure gold he is A) honoring his daughter B) blaming capulet for the tragedy C) ending with enmity with capule
Is the answer to #7 true
Solve for x. 7 × (3 + 8) = x
10. Find the participial phrase in the following sentence: We had to be careful with the coffee cup filled to the brim. Question 10 options: A) had to be care
Sarah got 90% on her math test. If the test was worth 180 points, how many points did Sarah get?
Which group benefitted the most from the Compromise of 1877?
What happened to wages in most industries during World War I? A) Corporations saw a decrease in profits. B) Women received equal pay for equal work. C) Hourly
Compare each pair of fractions by drawing models or using the LCD. Use the symbols <, >, or =. 1/3 ___ 3/9