# 83257

This number is a prime.

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The only 5-digit tetranacci prime number defined by the
four prime digits, (T_{0}=2, T_{1}=3, T_{2}=5, T_{3}=7), and the
recurrence relation: T_{n}=T_{n-1} + T_{n-2} + T_{n-3} + T_{n-4}. Note
that it is the 18th tetranacci prime of this kind and the
first that contains all of the prime digits. [Loungrides]

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