199

This number is a prime.

Just showing those entries submitted by 'Beedassy': (Click here to show all)

+ The first occurrence of a chain of six successive near-repdigit primes: 199, 211, 223, 227, 229, 233. [Beedassy]

+ The lesser of the smallest emirp pair (199, 991) each of whose members is the sum of a prime number of consecutive primes in a prime number of different ways: (199 = 61 + 67 + 71 = 31 + 37 + 41 + 43 + 47) ; (991 = 191 + 193 + 197 + 199 + 211 = 127 + 131 + 137 + 139 + 149 + 151 + 157). [Beedassy]

(There is one curio for this number that has not yet been approved by an editor.)

Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell