Migration complete - please let us know if anything isn't working.
This number is a composite.
The only distinct-digit brilliant number, that can be represented as sum of four powers using all the prime digits as bases and all the composite digits as exponents, i.e., 2^9 + 3^8 + 5^4 + 7^6 = 125347 = 163 * 769. Note that the concatenation in order of its prime factors is also a brilliant number, i.e., 163769 = 389 * 421. [Loungrides]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell