22573
This number is a prime.
The smallest prime-digit Happy prime to contain all of the
prime digits. [Bajpai]
The smallest prime-digit Loeschian prime of the form x^2 +
x*y + y^2 containing all of the prime digits, i.e., 131^2 +
131*33 + 33^2. [Bajpai]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell