190
This number is a composite.
Just showing those entries submitted by 'Thoms': (Click here to show all)
190 is the largest number with only distinct prime Roman numeral palindrome factors that is itself a Roman numeral palindrome (190 = CXC = II * V * XIX). [Thoms]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell