Question

Ο ΔΟ*
19.Number Series : 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21. In this series
have many numbers have their sum of digits as a prime number? *
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Answer 1

Answer:

22.23.24.25

Explanation:

1. in this series have many number have their sum of digit as a prime number