Addive Primes

Additive primes can be defined as prime numbers where the sum of its digits is a prime number.

Examples

 * For example, 29 is a prime number. 2+9=11.
 * 11 is a prime number. 1+1=2.
 * 2 is also a prime number. 0+2=2.
 * Therefore, 29, 11 and 2 are all additive primes.

The First Few Additive Prime Numbers
2

3

5

7

11

23

29

41

43

47

61

67

83

89

101

113

131