# 10010101

This number is a prime.

A "byte" that is prime in both decimal and binary. Note that the 0's are in prime positions and the 1's are in non-prime positions when read left-to-right. [Honaker, 2005]

The smallest prime formed exclusively from an equal number of zeros and ones. [Silva]

(There is one curio for this number that has not yet been approved by an editor.)

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