47

This number is a prime.

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

The first of two consecutive primes whose sum has the form 10ⁿ. [Silva]

The list of primes begins with a zeroless sequence of 47 digits. [Silva]

The sum of the first six primes with distinct end-digits (11+2+3+5+7+19). [Silva]

The smallest prime of the only pair of two consecutive two-digit primes whose sum of the reversals is prime. [Silva]

(There are 3 curios for this number that have not yet been approved by an editor.)