138959

This number is a prime.

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

+ Largest number n (coincidentally prime) such that the nth triangular number contains each of the 10 decimal digits exactly once i.e. T(138959) = 9654871320. [Gupta]

Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell