# 251

This number is a prime.

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10^79-251 is the nearest prime to the â€œUniverse number." (See, PC79). [Loungrides]

(251, 257, 263, 269) is the smallest sexy prime quadruplet and the only with 3-digit terms), for which there are no other primes between the first and last terms except from its other two terms. [Loungrides]

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

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