10068809

This number is a prime.

Single Curio View: (Seek other curios for this number)

The smallest Sophie Germain prime P, containing all of the strobogrammatic digits {0, 1, 6, 8, 9}, yields another Sophie Germain prime Q when rotated by 180 degrees. Curiously, P and Q both are expressible as the sum of two squares. [Bajpai]

Submitted: 2019-06-08 05:47:53; Last Modified: 2020-06-16 13:34:43.