
Curios:
Curios Search:
Participate: 
Every number greater than 45 is (probably) the sum of distinct primes greater than or equal to eleven. [Gupta] If the first five positive powers of two are each subtracted from 45 all results are prime. [Trotter] The common alphabetical value of the three primes 41, 59 and 61 in Roman numeralsbased representation. Note that XLI, LIX and LXI are the only valid permutations of the numerals L, X and I. [Necula] The only known multidigit number n (up to 10^9) such that, n = reversal(sigma(n)  phi(n)) = reversal(sigma(n))  reversal(phi(n)). [Capelle]
(There are 5 curios for this number that have not yet been approved by an editor.)
Prime Curios! © 20002018 (all rights
reserved)
privacy statement
(This page was generated in 0.0242 seconds.)
