Find The Next Number 12, 13, 15, 17, 111, 113, 117, 119, 123, ?

Test your skills with numbers with this numerical riddle.


Find The Next Number in the following series;

12, 13, 15, 17, 111, 113, 117, 119, 123, ?

So were you able to solve the riddle? Leave your answers in the comment section below.


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