Number Gossip
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Unique Properties of 241
- 241 is the only number m such that prime(m) = pi(m * pi(m)), where pi(n) is the number of primes less than or equal to n
- 241 is the smallest prime p such that the concatenation of p in base 10 down up to base 2 is prime
- 241 is the smallest prime which, when added to its reversal, equals a palindromic prime
- 241 is the smallest nontrivial integer of the form (x12 + y12)/(x4 + y4)