511
This number is a composite.
Single Curio View: (Seek other curios for this number)
5-1-1 = 3, 5*1*1 = 5, (5/1)/1 = 5, & 5+1+1 = 7. Note the curious symmetry among the odd primes and unity. [Capelle]
Submitted: 2003-06-11 12:27:09; Last Modified: 2008-01-30 17:28:00.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell