How many digits would we need to represent the values 18, 789, and 10956 in binary?

Value	Formula					Digits Needed
18	log (18)   log (2)	=	1.255  0.301	=	4.048	5
789	log (789)   log (2)	=	2.897  0.301	=	9.345	10
10,956	log (10956)   log (2)	=	4.040  0.301	=	13.031	14

We could also have found the answer since we know 2⁴ = 16, 2⁵ = 32, and 2⁹ = 512, 2¹⁰ = 1024, and 2¹³ = 8192, 2¹⁴ = 16384.