1) If log 2 = 0.30103, the number of digits in 264 is : A) 20 B) 25 C) 19 D) 18 Answer: Option AExplanation:log (264) = 64× log 2 =64×0.30103 =19.26592. Its characteristic is 19. Hence, the nuber of digits in 264 is 20.