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(another Prime Pages' Curiosity)
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+ Water boils at approximately 373 Kelvin. [Croll]

+ Describing 373 and repeating the process with each new term produces three more primes, i.e., one 3, one 7, one 3, generates 131713, etc. [Honaker]

+ 373 = 32 + 52 + 72 + 112 + 132, i.e., the sum of the squares of five consecutive primes. [De Geest]

+ 373 is the largest prime such that each substring is prime. [Bakker]

+ The smaller member of a Gridgeman pair. [Patterson]

+ 373 = 2^1 + 3^1 + 5^2 + 7^3 is the sum of the first four primes raised to the powers of the the first four Fibonacci numbers. [Post]

+ The only three-digit prime with digits a, b, c, such that a, b, c, ab, and bc are all prime, i.e., 3, 7, 3, 37, and 73 are all prime. [Seidov]

+ The smaller prime in the smallest Gridgeman pair that remains so when 0s are inserted between digits. [Punches]

+ The smallest "primemirp" having only prime digits. [Beedassy]

+ The sum of four consecutive semiprimes (91 + 93 + 94 + 95). [Silva]

+ The smallest balanced palindromic prime. [Silva]

+ The smallest multidigit palindromic prime of distinct prime factors of elements of Lucas sequence v(P=3,Q=5) of the second kind. [Post]

+ The smallest 3-digit prime that is an absolute, prime-digit, left and right-truncatable (ambi-truncatable?) prime. [Green]

+ The largest strange number.

+ The first palindromic prime formed from the enddigits of consecutive primes (43, 47, 53). [Silva]

+ Hall of Fame pitchers Grover Cleveland "Old Pete" Alexander and Christy Mathewson each won 373 games in their professional baseball careers.

+ One hundred grams of brown sugar contains 373 calories.

+ A gear ratio of "three-seventy-three" indicates 3.73 drive axle turns for every engine revolution. [Woodby]

(There are 6 curios for this number that have not yet been approved by an editor.)

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