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A162658
Primes such that the sum of its smallest and largest decimal digits is an odd prime.
1
23, 29, 41, 47, 61, 67, 83, 103, 107, 163, 211, 223, 229, 233, 241, 269, 293, 307, 383, 421, 431, 433, 443, 449, 457, 461, 467, 479, 491, 499, 503, 509, 523, 547, 587, 607, 613, 631, 641, 661, 677, 701, 829, 853, 857, 863, 883, 929, 947
OFFSET
1,1
EXAMPLE
947 is a prime in which the sum of the smallest digit (4) and the largest digit (9) is an odd prime (13).
KEYWORD
nonn,base
AUTHOR
Parthasarathy Nambi, Jul 09 2009
STATUS
approved