The Number
3
Three
In Base 21 Unovigesimal Is
321
The numbers with a 21 subscript use Base 21 Unovigesimal notation.
For more familiar numbers: See Three in Base 10 Decimal
Nearby Numbers
Positive, nonzero integers within three units
Scientific Notation
Scientific notation expresses a quantity as the product of its significand with 10 raised to an integer exponent.
3e0
Reciprocal
A number multiplied with its reciprocal is one.
0.721
The reciprocal of 3 in Base 21 Unovigesimal.
Palindrome?
A numerical palindrome has the same value when all of its digits are reversed.
The number 321 is a palindrome.
A Prime Number
A prime number is a positive integer that is divisible only by itself and one.
Three is the 2nd prime number. See primes in Base 21 Unovigesimal
Not A Composite
Composites have more than just these two factors.
Three is not a composite number because it has exactly two factors: One and Three
Prime Factors
The number three has the following 1 prime factor:
Prime Factorization
The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities
3211
= 321
Base Conversions
The number three in 35 different bases