437

This number is a composite.

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The smallest tetranacci brilliant number (437 = 19 × 23) defined by the four prime digits (T₀=2, T₁=3, T₂=5, T₃=7) and the recurrence relation: T_n = T_n-1 + T_n-2 + T_n-3 + T_n-4. [Loungrides]

Submitted: 2019-08-01 11:35:19; Last Modified: 2020-07-12 18:35:38.