37
53 is prime, and 5+3 = 8.
The number is 23.
50
31.
The prime number is 47 and 4+7 = 11
37
13
31
53 is prime, and 5+3 = 8.
The number is 23.
2014 ( The sum of the digits = 7, a prime number )
It is: 59
'17' is a prime number. The sum of the digits is 1 + 7 = 8 > 7.
what number is prime to 40 29 - it's a prime number (divisible only by 1 and itself) and if you sum the two digits 2 + 9 = 11
50
37