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 sum of the reversals of all two-digit primes with end-digit
7. [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 sum of the first fifteen primes plus the sum of their
differences. [Silva]
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