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A255976
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Primes that are the concatenation of two 3-digit primes.
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1
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101107, 101113, 101149, 101173, 101197, 101281, 101293, 101347, 101359, 101383, 101419, 101449, 101467, 101503, 101599, 101641, 101653, 101701, 101719, 101797, 101839, 101863, 101929, 101977, 103307, 103349, 103409, 103421, 103457, 103577, 103613
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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COMMENTS
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The last term is a(2753)=997991.
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LINKS
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MATHEMATICA
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Select[1000 First@ # + Last@ # & /@ Permutations[Select[Range[100, 999], PrimeQ], {2}], PrimeQ] (* Michael De Vlieger, Mar 13 2015 *)
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CROSSREFS
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KEYWORD
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base,fini,full,nonn
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AUTHOR
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STATUS
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approved
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