64 and 128 Bit Basics

64 Bits

Note: 64 bits can represent numbers from 0 to 18,446,744,073,709,551,615 (2^64 - 1). Only the least significant 16 bits are shown.

Decimal	Binary (only showing least significant 16 bits for brevity)
0	0000000000000000
1	0000000000000001
2	0000000000000010
...	...
10	0000000000001010

128 Bits

Note: 128 bits can represent a very large range of numbers, from 0 up to 340,282,366,920,938,463,463,374,607,431,768,211,455 (2^128 - 1). Only the least significant 16 bits are shown for simplicity.

Decimal	Binary (only showing least significant 16 bits for brevity)
0	0000000000000000
1	0000000000000001
2	0000000000000010
...	...
10	0000000000001010