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The number obtained by concatenating the first prime and twice the next prime. [Russo] The prime factorization of 26 uses the first three counting numbers. [Trotter] One of only two numbers which contain exactly the first three digits in its unique prime factorization. [Hunter] The number of minimal primes which cover the set of primes in base 10. [Rupinski] 26 is the smallest number that can be expressed by three identical prime digits in a prime base, i.e., 222 in base three. Note that it is also the reverse of the second such number: 62 = 222 in base 5. [Necula] 26 = 2 * prime(6). [Gupta] There are no twin primes between 26^{2} and 28^{2}. [Wesolowski]
(There are 9 curios for this number that have not yet been approved by an editor.)
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