Migration complete - please let us know if anything isn't working.

# 781

This number is a composite.

The largest 3-digit tnaillirb n, with distinct prime factors, whose the reversal is equal to the product of the reversals of the above factors, i.e., 781 = 11*71 and 187 = 11*17. [Loungrides]

The smallest quintan brilliant number, i.e., (4^5-3^5)/(4-3)=781=11*71. [Loungrides]

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