The Number

2

Two

In Base 2 Binary Is

102

The numbers with a 2 subscript use Base 2 Binary notation.

For more familiar numbers: See Two in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

3
112
Three in Base 2 Binary
4
1002
Four in Base 2 Binary
5
1012
Five in Base 2 Binary

Scientific Notation

Scientific notation expresses a quantity as the product of its significand with 10 raised to an integer exponent.

2e0

Reciprocal

A number multiplied with its reciprocal is one.

0.12

The reciprocal of 2 in Base 2 Binary.

Palindrome?

A numerical palindrome has the same value when all of its digits are reversed.

The number 102 is not a palindrome.

A Prime Number

A prime number is a positive integer that is divisible only by itself and one.

Two is the 1st prime number.   See primes in Base 2 Binary

Not A Composite

Composites have more than just these two factors.

Two is not a composite number because it has exactly two factors: One and Two

Prime Factors

The prime factors of a positive integer are the integers that divide it exactly and are also prime.

The number two has the following 1 prime factor:

2
102
Two in Base 2 Binary

Prime Factorization

The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities

1021 = 102

Base Conversions

The number two in 35 different bases