Question 990659
 i am a number less than 100, i am a product of two prime numbers.
 if you reverse my digits, i am prime. the sum of my digits is a one-digit prime. one of my digits is a square number. what number am i?
:
From the statements "one of my digits is a square number" and "the sum of my digits is a 1 digit prime"
The 2nd number has to be 4, the 1st number has to be 3: 34, sum is prime: 7; and reversed is prime; 43
The product two prime numbers: 2 and 17