Power of two

In mathematics, a power of two means a number of the form 2n where n is an integer, i.e. the result of exponentiation with number two as the base and integer n as the exponent.

Description

In a context where only integers are considered, n is restricted to non-negative values, so we have 1, 2, and 2 multiplied by itself a certain number of times.

Because two is the base of the binary numeral system, powers of two are common in computer science.

Written in binary, a power of two always has the form 100…000 or 0.00…001, just like a power of ten in the decimal system.

See also

• Binary
• Binary numeral system
• Bit
• Computer science
• Decimal system
• Exponentiation
• Mathematics
• Power of ten

External links

• Power of two @ Wikipedia