Answer:
29
Explanation:
All prime numbers less than 30 are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29.
29 is the only number number that’s equal to 11 when it’s digits are added up. (2+9=11)
29.
29 is a prime number and 2+9 = 11.
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