This number is a composite.
Single Curio View: (Seek other curios for this number)1961 was the most recent strobogrammatic year. Note that the sum of its prime factors is 90, which contains the necessary digits to form the next such year, i.e., 6009. [Honaker]
Submitted: 2003-12-30 13:08:50; Last Modified: 2008-01-30 11:28:00.
Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell