Birdwatch Note Rating
2024-03-25 10:24:59 UTC - HELPFUL
Rated by Participant: 9D562F646FBC394A7BFABB1A4BD3F79304BA9E026E711D6FCDAB8B1011CACDFD
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Original Note:
A prime number is circular if it remains prime after any cyclic permutation of its digits. However, other possible permutations of the digits don't have to be all primes. In this case, the permutation 139,399 is not prime, but we still consider 193,939 to be a circular prime. https://mathworld.wolfram.com/CircularPrime.html
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