5557
This number is a prime.
2 + 3 + 5 + 7 + 11 + ... + 3833 = 3847 + 3851 + ... + 5557. [Rivera]
5557 is the 733rd prime. Note that 5557 and its index are
both near-repdigit prime-digit primes. [Loungrides]
(There is one curio for this number that has not yet been approved by an editor.)
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell