Migration complete - please let us know if anything isn't working.
This number is a prime.
Just showing those entries submitted by 'Gaydos': (Click here to show all)
The smallest prime number that is a substring of the concatenation, in either order, of the next two primes (331 and 317). The next four such primes are 111091, 777781, 1131113, and 3333313. [Gaydos]
There are 313 even digits in the first 313 prime numbers. [Gaydos]
(There are 2 curios for this number that have not yet been approved by an editor.)
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell