52779...71333 (52-digits)

This number is a prime.

                   52 7794316046 4386195600 4506739335 1377197111 3111771333

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

Largest prime growing in the center, two digits xy at a time, xy are two digits primes, 02 to 97, repetition allowed. Found by Giovanni Resta. [Rivera]