10985674123
This number is a prime.
1 0985674123
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It is conjectured that you can always arrange the numbers
from 1 to 2n in a circle so that every pair of
adjacent numbers adds to a prime. Antonio Filz called this circular permutation a Prime Circle. This prime gives one solution (starting with 10) when n = 5. [Caldwell]
Submitted: 2008-03-07 14:41:04; Last Modified: 2008-11-27 20:45:59.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell