Prime Curios!: 449

449
(another Prime Pages' Curiosity)

Curios:

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The smallest prime number whose individual digits are composite perfect squares. [Thoms]

The smallest prime number that can be constructed by two concatenated perfect prime squares (2² and 7²). [Wagler]

449 is the 87th prime. Note that 4² + 4² + 9² = 8² + 7². [Punches]

The smallest prime whose digits are all semiprimes. [Silva]

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