6

This number is a composite.

Just showing those entries submitted by 'Gupta': (Click here to show all)

6 is the smallest composite number whose sum of prime factors is prime. [Gupta]

The only perfect number that can be sandwiched between twin primes. [Gupta]

The product of the first four nonzero Fibonacci numbers. Note that 6 + 1 and 6 - 1 are twin primes. This is the smallest such product of consecutive nonzero Fibonacci numbers. [Gupta]