4753
This number is a composite.
The largest four-digit triangular number formed by
concatenating two consecutive primes (i.e. 47||53). [Bajpai]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a composite.
The largest four-digit triangular number formed by
concatenating two consecutive primes (i.e. 47||53). [Bajpai]