1979
This number is a prime.
Single Curio View: (Seek other curios for this number)
The modern sudoku was most likely designed anonymously by Howard Garns in 1979. [Gudipati]
Submitted: 2026-09-12 10:25:06; Last Modified: 2026-11-01 20:20:01.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Reginald McLean