13

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

Photo credit: Patrick Kik
+ The square of the prime 13 is 169 and 169 is the concatenation of the squares of two consecutive numbers 4 and 3. This is the largest prime known with this property. [Rivera]

Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell