Q1: If log 2 = 0.30103, the number of digits in 2⁶⁴ is:

ANS:C - 20

log (264)	= 64 x log 2
	= (64 x 0.30103)
	= 19.26592

Its characteristic is 19. Hence, then number of digits in 2⁶⁴ is 20.