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26 (another Prime Pages' Curiosity) |
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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]
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