345676543

This number is a prime.

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

If the digits of the prime, reading left to right, steadily increase to a maximum value, and then steadily decrease, they are called peak primes. Valley primes are just the opposite. There are a total of 10 peak and 20 valley primes. 345676543 is unique because of the five consecutive digits. [Heinz]