1691
This number is a composite.
Single Curio View: (Seek other curios for this number)
The only known strobogrammatic number that is the sum of three distinct Fibonacci primes, i.e., 1691 = 5 + 89 + 1597. [Honaker]
Submitted: 2020-05-28 22:53:17; Last Modified: 2020-05-28 22:57:57.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell